A cyber-attack attributed to hackers with Iranian connections resulted in the temporary shutdown of a small-scale energy generator in the United Kingdom last month, according to reports and government officials. The incident lasted approximately four days before operations were restored. UK government authorities stated that the attack posed no threat to the broader national energy infrastructure, which they characterized as highly resilient. Officials said they work with the energy sector to maintain protective measures and security standards.
The attribution to Iran comes amid increased tensions between Tehran and Western nations. Earlier this month, the UK government announced it had authorized the United States to conduct defensive cyber operations from British military bases on UK soil. Iran’s Islamic Revolutionary Guard Corps responded by declaring that any base used for operations against Iranian territory would be considered a legitimate military target. The UK has maintained a policy of permitting defensive actions by the US while declining to participate in offensive operations, a stance that was reaffirmed following a change in the country’s leadership.
Security officials have warned of growing threats to critical infrastructure from hostile state actors. Richard Horne, chief executive of the National Cyber Security Centre, cautioned earlier this year that Russia, China, and Iran are increasingly targeting systems supporting vital UK services. The NCSC, which handles investigations into attacks on critical infrastructure, was not reported to have received notifications of major outages from regulated power station operators in connection with this incident.
Iran has a documented history of conducting cyber operations against multiple countries. The nation has been linked to a significant power outage in Turkey in 2015 and potential breaches of Israeli government systems in 2022. US government agencies previously warned of attacks on critical infrastructure carried out by Iran-affiliated groups, including one known as CyberAv3ngers, which allegedly compromised numerous devices across multiple infrastructure sectors in 2023.
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