Cybercrime

Russian Emergencies Ministry also says its mobile app suffered a ‘massive cyberattack’, leading to ‘false information’.

Ukraine’s Air Force has said its air raid alert app sent erroneous messages after allegedly being hacked by Russia.

Fake alerts warning of nuclear and chemical threats to areas in and around Kyiv were sent on Sunday, along with warnings of potential street combat. An erroneous message also said Russia’s hypersonic Oreshnik missile had been deployed.

“The air alert app appears to have been subjected to enemy influence,” the Ukrainian Air Force said on Telegram on Sunday. “There is no radiation threat! Stay calm and follow our updates on our channel.”

SPRAVDI, Ukraine’s Centre for Strategic Communications, blamed Russia for the hack in a post on X.

The raid alert app is used across Ukraine to warn people in real time of incoming Russian air attacks. A separate app, specifically for the Ukrainian capital, was working normally, according to Kyiv authorities.

Hours later, early on Monday morning, Russia’s Emergencies Ministry said its mobile app had been hit by a “massive cyberattack”.

The ministry said on Telegram that the attack led to the spread of “false information”.

Russia’s and Ukraine’s announcements follow the end of a truce between the two countries in Kherson.

The localised ceasefire, which began on Tuesday and ended on Sunday, was the longest of the war so far.

Crypto firm Binance says it has covered 90 percent of losses from the multibillion-dollar hack.

The FBI has linked North Korea to the theft of a record $6.3bn in virtual assets from cryptocurrency exchange Binance.

Malicious actors from North Korea were observed laundering the ⁠stolen assets ⁠by converting them primarily into the cryptocurrency Ethereum, ⁠the FBI said in a statement on Saturday.

The US agency blamed the operation specifically on a group called TraderTraitor, the same group blamed for a $1.5bn theft from the Bybit platform in February last year.

According to the statement, the assets are expected to be “further laundered” in stages.

The FBI called on virtual asset service providers to block transactions being used in the latest laundering operation, providing the suspected digital addresses to watch for.

In a separate statement on Saturday, Binance said it has replaced 90 percent of the amount stolen by using company money to buy new tokens.

The remaining 10 percent consists of less liquid tokens, meaning they ⁠may take longer to buy, it added.

“We will continue to buy the remaining relevant token assets… until the covered amount reaches 100 [percent] for all tokens. Binance will absorb the financial impact of these stolen funds, not our users,” the company said on X.

The money spent re-buying tokens came from a $1bn Secure Asset Fund for Users (SAFU), a Bitcoin reserve fund Binance ⁠holds to protect customers in the event of security ⁠breaches, as well as some of its Futures Insurance Fund and the company’s corporate treasury.

Crypto prices fell on Friday, as Binance, which runs the world’s largest crypto exchange, sought to reassure customers their funds were safe.

Binance co-CEO Richard Teng said on Friday that the breach was a “complex attack” involving a compromised laptop and malicious software designed to ⁠delete evidence of its activity, making it hard to trace and investigate.

After ⁠the hack, the exchange stopped allowing customers to withdraw their funds.

Binance said later on Saturday that it was on track to reopen withdrawals on Sunday.

Binance also announced the publication of a new proof-of-reserves snapshot, allowing users to independently verify that their assets were backed at a minimum 1:1 ratio.

Earlier this month, authorities worldwide urged website administrators to execute emergency updates after a nonprofit programming foundation flagged critical security flaws that could allow hackers to breach systems.

Government and corporate websites briefly went offline to patch the vulnerabilities, nicknamed PHP2Shell, which were discovered by independent cybersecurity experts using artificial intelligence (AI).

The vulnerabilities were embedded in the code of a widely used open-source web programming language, PHP, for more than a decade. They had gone unnoticed, however, because it would have been too complicated for humans to exploit them without the use of advanced AI.

But cybersecurity experts, as well as those maintaining important software, say PHP2Shell could be the first in a deluge of security flaws exposed by emerging AI. They say much of the world’s most critical digital infrastructure is maintained by volunteers, who often lack the resources and time to respond to newly discovered threats.

“There’s been a lot of people in the AI safety community that said this is one of the first areas where we are going to see the harmful impact of AI,” said Peter Slattery, a research scientist at MIT’s FutureTech, who studies how cybersecurity experts are dealing with the new technology and tracks real-world incidents involving AI.

A digital world built on volunteer work

PHP got its start in 1995, when Danish-Canadian programmer Rasmus Lerdorf sought to track how many people visited his online resume. Over time, others around the world improved Lerdorf’s software, and it grew in popularity.

As with other open-source coding projects, anyone could download, modify and share improvements. Websites like Facebook and Wikipedia were built using PHP, which runs about 70 percent of the world’s websites.

In 2021, a dedicated nonprofit, the PHP Foundation, was launched to coordinate development. Like many other foundations maintaining open-source software, it operates on a meagre budget.

Most of the digital infrastructure consumers use is powered by open source software. The Mozilla Firefox browser is open source, as are languages like Perl, Python, and JavaScript. The software that lets a computer communicate with others on the internet is often open source, with many servers using products like Apache HTTP Server, maintained by the Apache Software Foundation.

“The world today, including proprietary software vendors, relies on open source software for its digital infrastructure,” said Amanda Brock, CEO of OpenUK, a nonprofit that supports open source software.

The world’s largest corporations, like Meta, Google, OpenAI and Anthropic, depend on that volunteer-built, open-source infrastructure. Now, those companies’ own AI tools are uncovering security flaws in the infrastructure at a pace that needs far more resources for groups like the PHP Foundation to keep up.

“It’s simply not possible with the resources in place to fix all of the known vulnerabilities,” Brock said. “Foundations are attempting to manage these challenges, but the smaller ones don’t have hundreds of millions in funding, and managing this at the pace AI requires is proving impossible.”

A deluge of new bugs to fix

The PHP2Shell vulnerabilities were found through several advanced AI models, which can employ far more complicated attempts to hack past security barriers than humans could.

Developers of other software are also discovering far more security flaws than in the past because AI is being used to probe defences.

Google said it uncovered more than 1,000 security bugs in the last update for its Chrome browser, more than in the last two dozen updates combined. Mozilla, the foundation behind the Firefox browser, found more than 400 security vulnerabilities in April, a significant jump from the previous record of 76 bugs discovered just one month earlier.

“We have maybe 10 times more issues than usual because we are using AI to find them,” said Jarek Potiuk, part of the volunteer security team at the Apache Software Foundation. (In keeping with the foundation’s non-hierarchical ethos, Potiuk said he has no real title).

Potiuk said there is an “industry-wide movement” to conduct scans using AI models and identify security vulnerabilities, much like was done to find the bugs in PHP. But the scans themselves cost money – used to pay for the tokens for AI models – and afterwards, humans must pore over them to weed out false positives.

“Every project, every foundation is doing this right now – spending enormous amounts of time to find these issues,” Potiuk said. “AI helps to find them, but you have to verify things, you have to review them.”

Earlier this year, Anthropic launched Project Glasswing, offering $100m in credits to support its advanced Claude Mythos AI model to search for security vulnerabilities in the world’s critical software. In one month, more than 23,000 vulnerabilities were found across more than 1,000 open source projects.

The Apache Software Foundation has taken advantage of another scheme, the Alpha-Omega project, to scan for security bugs across the 290 software packages it maintains. The project, backed by companies like Anthropic, Amazon, Google, Microsoft and OpenAI, spends about $7m a year helping open-source developers find critical security bugs.

But those working on finding and fixing the security flaws say the corporate world could be doing a lot more, given the trillion-dollar valuation of companies whose products would not work without free software like the packages the Apache Foundation provides.

“They are helping a lot, but we need more active players in this area,” Potiuk said, “because it’s highly disproportional – the impact it has on the corporate world versus the open source world”.

When a major security flaw like PHP2Shell is uncovered, it often comes down to a handful of volunteers to fix it.

Keeping the internet’s infrastructure as decentralised and open-source as possible is crucial, Potiuk said. Instead of buying out something like PHP, major players like Google or Microsoft could, for instance, pay staff to dedicate some of their work hours to maintaining open-source projects they use.

Real-world targets

The 2021 Log4Shell vulnerability, which allowed hackers to remotely run code on millions of devices through a widely used library maintained by the Apache Software Foundation, underscored the critical role open-source software plays in system security. That bug was discovered without the use of AI.

Suddenly, cars, microwaves and a host of electronic devices connected to the internet were vulnerable, Potiuk said.

“That was the moment when the whole ecosystem realised how important it is to take care of open source,” he said.

A bug like that, if found by a malicious hacker and exploited before there is a chance to patch devices, could have caused a major disruption.

Slattery said the database of incidents he and his colleagues maintain shows that an increasing number of vulnerabilities are being detected, and it is a matter of time before some are exploited in the real world.

“We are starting to see both a lot more vulnerabilities detected and addressed in time, but also attacks on a wide range of systems,” Slattery said. “We have been moving in this direction for a long time. There are more and more things now you can attack.”

An Icelandic web company, FlokiNET, has defended the data’s publication as satisfying a ‘legitimate’ public interest.

The United States Department of Homeland Security (DHS) has asked an Icelandic web hosting company to take down a site with information about tens of thousands of its employees.

On Thursday, the Icelandic company FlokiNET posted a letter it received from the cybersecurity firm ZeroFox, on behalf of DHS.

The letter accused FlokiNET of violating its terms of service by publishing a “stolen” employee dataset and asked it to “remove or disable” the information.

“The content is live and places more than 40,000 identifiable individuals at risk of harassment, stalking, and physical harm,” the letter said.

FlokiNET said the letter concerned one domain, icepi.cx, which has compiled information about employees from a range of DHS agencies, including Immigration and Customs Enforcement (ICE) and Customs and Border Protection (CBP).

Those agencies have come under intense scrutiny since the start of President Donald Trump’s mass deportation campaign in 2025.

But the Trump administration has often refused to identify DHS agents involved in specific operations, citing safety risks.

Though FlokiNET said it refused to comply with DHS’s request, it noted that the website’s registrar ultimately suspended the domain. The employee information has since moved to a different domain.

In a statement posted online, FlokiNET defended its decision not to remove the site.

“Federal officers carrying out an enforcement programme are not private individuals while they are carrying it out,” the company said. “The public has a legitimate interest in knowing who is doing that work, under whose authority, and in which office.”

The database was first posted online on Wednesday by Distributed Denial of Secrets (DDoSecrets), a group that showcases leaked government data.

In the past, DDoSecrets has released emails from convicted sex offender Jeffrey Epstein, as well as information from the Israeli Ministry of Justice and police departments in the US.

A hacker group calling itself the “Department of Peace” has claimed responsibility for obtaining and sharing the DHS data.

Since the database was first published, other groups have spread the information elsewhere, including on sites like icepi.cx. As a result, the information is unlikely to be entirely scrubbed from the internet.

The Trump administration, however, has taken an aggressive approach to online platforms purporting to contain information about ICE employees and other agents involved in immigration operations.

Last year, for instance, the US Department of Justice pressured tech giants like Apple to remove apps that track ICE agents, including one called ICEBlock.

The move sparked backlash from Democrats and free-speech advocates, who argued that the public has a right to report on ICE’s movements.

“Blocking access to these apps at the request of the federal government raises the distinct possibility that Apple is working with government to violate its customers’ First Amendment right to record and report on the activities of their government,” Democratic Representative Jamie Raskin wrote in a letter last year, asking Apple to review its decision.

Immigration agents, meanwhile, have taken several steps to conceal their identities during operations, including wearing face masks or street clothes.

That lack of transparency has spurred criticism from human rights groups and immigration advocates, who argue that they have little recourse to pursue allegations of excessive force or impropriety during ICE raids.

Since Trump was sworn in for a second term, at least 25 people have faced gunfire from immigration agents. Six of the shootings have resulted in deaths.

Other cases have involved alleged violations of civil liberties – including unlawful arrests and racial profiling – as well as controversial tactics like car ramming and tackling.

Just visiting a page or refreshing an app can be enough to fall victim to a malware attack in which your personal data is stolen from a laptop or phone, researchers have found. You are not even required to “click” on anything.

An Israeli spyware firm has been found to be behind the first-known instance of “zero-click” targeted advertising in which fraudsters or spies can steal private data and send it to external servers, with Al Jazeera journalists among the victims.

In June 2025, 45 devices used by Al Jazeera staff – including several who reported on sensitive subjects – were targeted with spyware which installed itself without the need to open or download any files.

An investigation by the Canada-based academic research unit Citizen Lab, prompted by Al Jazeera’s initial internal probe into the issue, discovered that the Israeli company Candiru was behind the attacks.

Analysts say the findings are “incredibly concerning”, as they confirm the existence of a new global security threat. “We knew we were headed in this direction and now it is out in the public,” Remesh Srinivasan, professor of information studies at the University of California in Los Angeles, US, told Al Jazeera.

“This is the next level, because people are being microtargeted,” he said. “This is the point we’ve come to when it comes to surveillance.”

How ‘zero-click’ malware works

Al Jazeera’s in-house technology team first discovered unusual patterns on devices used by some journalists in 2024. Analysis of network logs provided to the Citizen Lab by Al Jazeera in 2025 provided a clear temporal signature of how the attack was executed.

Malicious advertisements were bought by Discover-Tech, an Israeli company presenting itself as a legitimate advertising firm, but which actually operates as a facilitator for mercenary spyware partners.

Its advertisement network identified Al Jazeera staff, then quietly redirected them to an infected server belonging to Candiru. The spyware firm was blacklisted by the US government in 2021, when Citizen Lab found it was responsible for the illegal hacking and surveillance of at least 100 activists, journalists and political activists across 10 countries.

Al Jazeera Media Network has condemned the targeting of its staff members’ devices and called for those responsible to be held accountable.

Cybersecurity analyst and author Eddy Willems said the advertisements used automatically infect devices the moment they pop up on the screen, but there is an important technical nuance. “Executing code inside the browser does not automatically give an attacker full control over the computer,” Willems told Al Jazeera.

“To escape the browser’s isolated environment – the ‘sandbox’ – the attacker may need a second vulnerability,” Willems said, adding that an advanced spyware operation can combine several vulnerabilities.

“The attacker attempts to exploit vulnerabilities to bypass security boundaries. This is precisely what makes this type of attack so dangerous,” the analyst said.

Once the device is infected, the malicious software is designed to collect a wide range of sensitive data, including files, documents, and browser data such as cookies, bookmarks, and saved credentials.

It can also capture keystrokes, take screenshots, record microphone and webcam input, and extract emails and messages from popular communication platforms. To avoid triggering security mechanisms, the spyware often uses encrypted communication channels and breaks up stolen data into smaller chunks sent over time.

Advertising: A new global security threat?

Analysts say Citizen Lab’s findings point to the escalation of an existing threat, which expands the scale and reach of traditional cyberattacks and makes them much harder to detect.

While “zero-click” attacks are not completely new, the findings outline a new technique through which online advertisements are used as a route to infection.

Stephen O’Shaughnessy, a lecturer in cybersecurity at the TU Dublin Blanchardstown campus in Ireland, explained that when a user opens a website or app, an automated auction sells the advertisement space in a fraction of a second. That auction shares data about the victim, including the device ID, IP address, rough location and the app or site they are on.

“Discover-Tech posed as an ordinary advertiser, used that data to find their target and win the auction for that person’s screen,” O’Shaughnessy told Al Jazeera. “Anyone with a phone or browser that shows ads can be reached, without the attacker needing their phone number or email.”

“Because no message or link is involved, there is almost nothing for the victim to notice,” he added.

Discover-Tech appeared on lists of “certified” and “approved” vendors maintained by Google and advertising industry association IAB Europe, and has served advertisements via major networks such as Google, Yandex and Beeswax.

In its report, Citizen Lab said this illustrates the structural flaws in the online advertising system, which essentially failed to detect or prevent the abuse.

Discover-Tech advertisements have popped up on devices used by personnel in national-security-sensitive networks around the world, including those of various ministries of defence, armed forces, national cyber agencies, intergovernmental organisations and media outlets, Citizen Lab found.

The research unit said these advertisements have also appeared on networks used by the United Nations, NATO, the European Parliament, the European Commission and the Council of the European Union’s General Secretariat.

‘Almost nobody was watching’

Government networks have also been targeted in at least 24 countries, including the United States, Italy, Denmark, Norway, Australia, Russia, Mexico and Israel itself. Networks of media organisations have also been targeted, mainly in Australia, Denmark and Sweden, according to Citizen Lab.

In a separate report, New York-based advertising security firm Confiant said its own investigations had found that some of Discover-Tech’s advertisements also appeared in critical networks used by the Pentagon, the United Nations International Atomic Energy Agency and the International Criminal Court.

O’Shaughnessy said infection has not been confirmed there – only profiling of users. “But that alone is concerning, he said. “The ad system was built to send code from strangers to billions of screens with pinpoint targeting. Almost nobody was watching it from a security angle.”

The analyst said the risk remains low for most people as these attacks are expensive and aimed at specific targets. “For individuals at high risk, like journalists and officials, the best first defence is to install an ad blocker, switch off their advertising ID through their phone’s privacy settings, keep everything updated, and turn on Lockdown Mode or Android’s Advanced Protection,” he said.

Precautions also need to be taken within the industry and at government level. “To combat this, the ad industry needs to properly vet who’s buying ads,” O’Shaughnessy said, while “regulators need to stop personal data being sprayed out to thousands of unknown bidders in every auction.”

Citizen Lab investigation says dozens of Al Jazeera devices were infected by malware planted through advertisements.

Israeli advertising technology company Discover-Tech helped place spyware on dozens of devices used by Al Jazeera and other companies, a Citizen Lab investigation prompted by Al Jazeera’s own initial internal probe has confirmed.

Al Jazeera Media Network on Thursday said it “condemns the targeting of devices belonging to several of its employees with spyware”.

“The network voluntarily collaborated with the researchers, and this cooperation, according to the report, contributed to verifying these attacks and publicly documenting them.”

Al Jazeera will continue to “protect its employees and systems”.

The network said targeting journalists is an “assault on press freedom and the public’s right to knowledge” and called for those responsible to be held accountable.

Spyware from Candiru, a firm blacklisted by the United States government in 2021 for its malicious cyber activities, was planted on these devices, using what Citizen Lab described as the first-known instance of “zero-click” targeted advertising.

The Citizen Lab, an interdisciplinary research unit at the University of Toronto, concluded in its report that Discover-Tech purchased the advertisements that had the spyware built in. It then directed devices to Candiru’s malware through these advertisements. The millions of devices that were pointed to the malware include several that belonged to Al Jazeera’s journalists – including several who reported on sensitive subjects.

Al Jazeera’s internal technology team first discovered unusual patterns on devices used by some journalists in 2024. The pattern continued into 2025. Al Jazeera reached out to Citizen Lab for a more detailed investigation into its suspicions that spyware was responsible.

“Analysis of network logs provided to the Citizen Lab by Al Jazeera collected during the attack period provides a clear temporal signature of how the attack was executed,” the University of Toronto-based team said ints report published Thursday.

The “zero-clock” nature of installing this spyware means that once an infected advertisement appears on a device, that device, too, is infected — spying on, and feeding, all the data and information available on that platform to those stealing it.

Meanwhile, New York-based security firm Confiant said in a separate report that some of Discover-Tech’s advertisements also appeared in critical networks used by the Pentagon, the International Atomic Energy Agency and the International Criminal Court.

Candiru’s spyware has previously been used to carry out surveillance on at least 100 journalists, dissidents and others in several countries.

The call comes as polls cast doubt on political leaders’ ability to manage AI risks amid US midterm elections.

A group of more than 300 scientists from around the world is calling for urgent changes to how artificial intelligence is developed and deployed amid growing concerns about its unpredictable behaviour.

The letter, released on Tuesday and signed by researchers representing universities and research institutes in 32 countries, warned that failures to follow basic cybersecurity practices could lead to damage to critical infrastructure.

Many recent incidents in which AI models escaped secure environments could have been prevented with stronger security systems, the scientists said.

They recommended that organisations developing and testing advanced AI systems capable of carrying out cyberattacks do so in more tightly controlled environments, including “air-gapped” systems that are not connected to the internet.

Growing concerns

The letter comes amid growing concerns about AI’s capabilities and its potential impact on everyday users. On Monday, Anthropic warned that its AI models could soon be capable of creating self-spreading malware that could affect everyday internet-connected devices, including smart TVs, security cameras and smart appliances such as ovens.

The report found that AI systems could identify unfamiliar devices without human intervention. The company, led by Dario Amodei, warned that smaller AI models could be capable of carrying out autonomous attacks by the end of the year.

The malware could also be difficult to contain because it might take days to infect a device and could spread across multiple machines rather than remain concentrated in a single, controlled location.

Taking control of internet-connected devices can have immediate consequences. In France, for example, hackers compromised cooling systems across hundreds of supermarkets, raising temperatures and causing more than $220,000 in damage.

Meanwhile, Axios news organisation reported on Friday that Anthropic, OpenAI and other major AI company executives are privately preparing for the possibility of a catastrophic AI-related incident that could disrupt access to major financial services, the internet and potentially critical infrastructure such as water and power systems. Several industry insiders believe a major incident could occur within the next six months to a year, it said.

The scientists also called for more safeguards, including the creation of an international organisation to establish a set of best practices for AI alignment and containment along with timely reporting of incidents.

One of the signatories, David Lie, a professor at the University of Toronto’s Department of Electrical and Computer Engineering, said his concerns began after OpenAI’s AI agents bypassed controls and hacked into servers at the tech company Hugging Face.

“One is that OpenAI, in setting up its test environment, didn’t appreciate how capable its agents were,” Lie said.

“These were the AI agents that they were designing. Second is that the AI agents independently found each other and chose to collaborate on this attack, and third is that they also intentionally tried to deceive and mislead their human creators.”

Political pressures

The letter underscores growing public concern about AI, including in the lead-up to the US congressional midterm elections. A recent Reuters/Ipsos poll found that 57 percent of voters said President Donald Trump’s administration was not taking AI risks seriously enough, while 54 percent said the same of Congress.

An AP-NORC poll echoed those findings, with about 80 percent of respondents saying the government should keep AI under human control. Respondents also expressed little confidence in either party’s ability to manage the technology: 39 percent said neither Republicans nor Democrats could be trusted to do a good job of reining it in, while 23 percent expressed greater confidence in Democrats and 21 percent in Republicans.

Hundreds of French supermarkets have suffered unprecedented cyberattacks resulting in tonnes of food perishing and raising fears about the vulnerabilities of food systems to advanced technology.

The attacks, which appeared to target internet-linked refrigeration systems manufactured by a Danish company, raised the temperature of fridges and freezers to as high as 50 degrees Celsius (122F) at more than 500 shops and supermarkets across the country. Supermarkets confirmed the attacks on Monday.

France’s cybersecurity agency has advised companies operating affected freezer models to immediately disconnect them from the internet – or restrict access to them – and to perform software updates.

It is unclear who may have been behind the attacks, but authorities say they have now launched an investigation.

Here’s what we know:

What happened?

Hackers gained internet access to the refrigeration systems and remotely cranked up temperatures in freezers and fridges to 50C during the night when shops were closed. Millions of euros worth of food was spoiled, according to retailers. In some cases, the raised temperatures sparked fires or melted equipment.

French supermarket groups E-Leclerc, Intermarche, Carrefour, Monoprix and Cooperative U were all hit.

At least 300 of Intermarche’s stores and its Netto brand were affected. Cooperative U said more than 100 of its supermarkets were targeted, while Carrefour said 80 supermarkets were affected and Monoprix reported that about 5 percent of its roughly 490 stores were hit.

Officials are still investigating who launched the attack and how it was carried out. French TV channel BFM reported that the attackers appeared to have remotely triggered a forced defrosting option in the refrigeration systems.

The systems targeted are built by Danish manufacturer Danfoss, according to France’s government cybersecurity agency. The refrigeration models attacked included the AK-SM800 and AK-SC355.

Danfoss told the AFP news agency that most of the affected control systems were “legacy” products that had “outdated firmware”. The company said it had previously advised supermarkets to update them.

AFP also reported that officials are liaising with other European countries which may have been affected.

It is unclear exactly how much food has been lost. The attacks come after President Emmanuel Macron ordered last month that the country’s critical infrastructure be protected from Russian “hybrid attacks”.

Have supermarkets been hit by cyberattacks before?

Yes. Attacks like these have been reported in other parts of Europe and in the United States.

In April 2025, British retailer and supermarket chain Marks and Spencer suffered a sophisticated ransomware attack that the company said cost it approximately 300 million pounds ($397m) after it was forced to suspend online and app orders. The attack was orchestrated by a hacker group called Scattered Spider, using ransomware from DragonForce, another criminal group. Ransomware attacks involve using malicious software to hide essential data unless a ransom is paid.

According to UK media, the same hackers also tried to attack Co-op and the iconic Knightsbridge store, Harrods.

Similar reports have also emerged from the US. In June 2025, United Natural Foods, a frozen food company which supplies big supermarket brands such as Whole Foods, said it had discovered a cyberattack that forced it to take its systems offline. The company did not reveal the nature of the attack.

In November last year, Ahold Delhaize USA said it was the victim of a cyberattack that disrupted operations at more than 2,000 stores, including Hannaford, Food Lion and Stop and Shop.

Why target supermarkets?

They are an easy target and the consequences can be widespread.

As food and agricultural systems increasingly digitise, analysts say supermarkets selling perishable foods are increasingly vulnerable to attacks due to the nature of their stocks.

The rising sophistication of cyberattacks now means that common people and local, third-party companies relying on big chains for business are also falling victim as attacks disrupt supply chains, experts say.

Speaking to Al Jazeera, tech and cybersecurity analyst Steven Lachance said smart appliances connected to the internet will always be vulnerable as hackers seize on security lapses to log in to the systems remotely and trigger malicious features.

“It’s the new reality of having these connected equipment,” Lachance said, pointing out that attacks could evolve to target medical or energy systems.

“This should come as a global wake-up call … Throughout society, we have connected infrastructure that is live on the internet, and that can be hacked. It’s a new reality, and we absolutely need national and international measures to prevent those attacks; otherwise, it’s just going to keep happening,” he warned.