Iran-linked hackers allegedly shut down a UK power plant for four days

Details Of Iran's First Known Successful Cyberattack Against A UK Energy Facility Via Middle East Eye Iranian hackers shut down a British power plant for four days in an unprecedented cyber attack, the Sunday Telegraph reported. According to the newspaper, the incident appears to mark the first time Iran-linked hackers have successfully shut down such a British facility. AFP: Members of the US Air Force prepare munitions at RAF Fairford in south-west England, March 10, 2026. The incident occurred alongside an alleged series of attacks on US water infrastructure last month, which affected at least 12 states and caused concern in the White House. The Telegraph said that British officials have refused to disclose which facility was affected, citing security concerns. A spokesperson for the Department for Energy Security and Net Zero said that the attack impacted a "small-scale energy generator", posing no "risk to the wider energy system". No outages were reported following the incident, according to the National Cyber Security Centre (NCSC), which deals with attacks on critical infrastructure. The British government subsequently briefed chief executives of power companies and wrote to businesses with advice, direction and next steps. The attack appears to mark an escalation following the UK's decision to grant the US permission to launch "defensive operations" against Iran from British bases. In March, Prime Minister Keir Starmer’s government had granted permission to the US military to use the Royal Air Force base in Fairford and the joint facility on Diego Garcia, for limited operations against Iranian missile facilities that "directly threatened British personnel", regional allies, or sovereign assets. The authorization was subsequently expanded, allowing the US to launch strikes against active Iranian missile infrastructure targeting commercial oil shipping channels in the Strait of Hormuz. In June, an Iran-linked hacker-activist group, Handala, claimed responsibility for a cyber intrusion targeting water facilities in California, saying the action was carried out in retaliation for alleged US strikes on water infrastructure in southern Iran.  The group said it had obtained data from the systems and described the breach as a warning to Washington. In a statement, Handala said it had the capability to disrupt water supplies but "stopped short of actually cutting off water to American cities", citing a different ethical code than its adversaries. The group also said it had published five gigabytes of data as evidence of the intrusion. In April, the group said it obtained at least 19,000 sensitive files after targeting the personal phone of former Israeli army chief of staff, Herzi Halevi. "All your top-secret facilities, crisis rooms, maps, and even the tiniest details of your command centers have long been like an open book to us," the group said in a statement posted on its website.  BREAKING: Iran-linked hackers reportedly shut down a small UK power facility for four days in an unprecedented cyberattack, according to The Telegraph. The incident is believed to be the first known successful cyberattack of its kind against a UK energy facility. It reportedly… pic.twitter.com/srUcgc5QsZ — The Geopolitics (@Newstoday555) August 23, 2026 The files, some of which were seen by Middle East Eye, showed Halevi meeting with Arab officials. In one undated photo taken in Qatar, Halevi could be seen attending a meeting with former US Central Command (Centcom) chief Michael Kurilla.  Tyler Durden Tue, 08/25/2026 - 05:00

A cyber attack shut down a small British power plant for four days in July. Hackers affiliated with the Iranian regime were responsible, according to the Telegraph. Tony Diver, Rozina Sabur and Matt Oliver broke the story on Saturday. It is thought to be the first time hackers linked to Tehran have closed such a […] This story continues at The Next Web

The attack happened the same month Iranian-linked hackers are believed to have targeted the water systems of a dozen U.S. states.

Iran-linked hackers allegedly forced a British power generator offline for four days, weeks after striking over 30 community water systems in Minnesota.

News that suspected Iranian hackers caused the shutdown of a British power plant broke over the weekend, raising the question of whether UK’s power grid and, indeed, the country’s critical infrastructure can fend off destructive cyber attacks. According to sources of UK news outlet The Telegraph, the power plant was offline for four days in July 2026, around the same time when 30+ community water utilities in the US were hit in a coordinated cyberattack … More → The post Suspected Iran-linked attack knocked UK power plant offline for days appeared first on Help Net Security.

A Telegraph report alleges that Iran-linked hackers temporarily shut down a power plant in the United Kingdom. CBS News' Ramy Inocencio reports.

A cyberattack took place in July and was attributed to Iran-linked hackers, forcing a small British generator offline for four days.

The attack caused real-world operational disruption and raised concerns about the resilience of Britain’s distributed energy infrastructure and the potential for repeatable attacks. The post Iran-Linked Hackers Shut Down UK Power Plant for Four Days appeared first on SecurityWeek.

Last month, a small power generation unit in Britain fell victim to hackers with ties to Iran, leading to a four-day shutdown—an unprecedented event for the UK. Fortunately, the national power grid remained unaffected and no major blackouts occurred. Security experts note this incident highlights Iran's growing cyber prowess against energy infrastructure. In response, British authorities have issued new guidance for energy operators concerning rising cyber threats.

Iranian cyber attack shuts down UK power plant for four days, report says Iranian hackers shut down a British power plant for four days in an unprecedented cyber attack, the Sunday Telegraph reported. According to the newspaper, the incident appears to mark the first time Iran-linked hackers have successfully shut down such a British facility. The incident occurred alongside a series of attacks on US water infrastructure last month, which affected at least 12 states and caused concern in the White House. The Telegraph said that British officials have refused to disclose which facility was affected, citing security concerns. A spokesperson for the Department for Energy Security and Net Zero said that the attack impacted a "small-scale energy generator", posing no "risk to the wider energy system". Read more: Iranian cyber attack shuts down UK power plant for four days, report says

"Iran shut down a British power plant for four days in an unprecedented cyber attack," reports the Telegraph. More details from the BBC: The government said that at no point was there a risk to the UK's energy system, but the Department for Energy Security and Net Zero (DESNZ) has contacted power companies to advise them about the risk of cyber attacks... DESNZ said the incident had affected a small-scale generator and at no point had there been a risk to the wider energy system. The UK's power network has a number of smaller gas generators which provide short-term power when needed. Thanks to Alain Williams (Slashdot reader #2,972) for sharing the news. Read more of this story at Slashdot.

A cyber attack forced a small UK power facility to shut down last month, underscoring fresh warnings from security officials about an escalating pattern of disruptive activity targeting British organisations. Hackers linked to the Iranian regime carried out the operation, which lasted four days, The Telegraph reported. The newspaper said the incident came as the […]

While UK officials said the attack didn't threaten the country's wider electrical supply, the cyberattack did shut down the plant for four days.

The UK government and the National Cyber Security Centre (NCSC) have not disclosed the identity of the site or details about the attack, citing security concerns.

The energy generator was reportedly shut down for four days last month

A cyber attack shut down a small power facility in the UK last month following warnings about a pattern of disruptive activity by state and non-state actors.

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The Islamist Iranian regime reportedly hacked into a British power plant and shut it down for multiple days in a deeply concerning demonstration of power. The post Iran Hacked and Shut Down a British Power Plant for Days: Report appeared first on Breitbart.

Incident marks apparent escalation by Tehran in its in retaliation against UK over allowing US to use British basesHackers linked to Iran have been blamed for a cyber-attack that caused a British power plant to be temporarily shut down.The incident involved a small-scale energy generator, according to the UK government and at no point was there there risk to the wider energy system. Continue reading...

The generator was forced to shut down for four days following the cyber attack

Iranian hackers shut down UK power plant for four days, The Telegraph reports Iranian hackers shut down a British power plant for four days in an unprecedented cyber attack, according to British newspaper The Telegraph. This is for the first time that Iranian hackers have succeeded in closing down such a facility in the UK, the newspaper reported.  The attack, believed to be the most successful cyber attack of its kind, took place at the same time as a series of attacks on US water infrastructure last month, which affected 12 states and caused concern in the White House. The Telegraph said British officials did not reveal which power plant had been affected, citing security concerns, but it had learnt that it was a small plant. Although the outage had no impact on the UK’s wider power supply or energy generation, the UK government briefed the chief executives of power companies and wrote to businesses with advice, direction and next steps.

The generator was forced to shut down for four days following the cyber attack

Iranian cyber terrorists forced the unnamed facility to be completely closed down while staff battled to bring systems back online, in the first and most effective attack of its kind.

Iranian cyber terrorists forced the unnamed facility to be completely closed down while staff battled to bring systems back online, in the first and most effective attack of its kind.

The exact location of the power plant has not been disclosed for security reasons, but it was offline for days.

The generator was forced to shut down for four days following the cyber attack