Protestors carry Iranian national flags and posters of the late revolutionary founder Ayatollah Khomeini and Supreme Leader Ayatollah Ali Khamenei, while chanting anti U.S. and Israel slogans, in Tehran, Iran, Tuesday, June 24, 2025. (AP Photo/Vahid Salemi)
Protestors carry Iranian national flags and posters of the late revolutionary founder Ayatollah Khomeini and Supreme Leader Ayatollah Ali Khamenei, while chanting anti U.S. and Israel slogans, in Tehran, Iran, Tuesday, June 24, 2025. (AP Photo/Vahid Salemi)
WASHINGTON (AP) 鈥 A ceasefire between Iran and Israel has not ended the threat of cyberattacks from hacking groups supportive of Tehran, the FBI and federal cybersecurity officials warned Monday.
In a , the authorities warned that hacking groups affiliated with or supportive of Tehran may still seek to disrupt or disable critical infrastructure systems in the U.S. such as utilities, transportation and economic hubs. Hackers may also target defense contractors or other American companies with ties to Israel, the agencies said.
鈥淒espite a declared ceasefire and ongoing negotiations towards a permanent solution, Iranian-affiliated cyber actors and hacktivist groups may still conduct malicious cyber activity,鈥 the agencies warned.
The warning of continued cyberthreats after a halt to conventional warfare reflects the often opaque nature of cyber conflict. Hacking groups may have only loose ties to a nation state, and may seek to retaliate as an alternative to traditional military action.
The bulletin outlined recommendations, including the use of regular software updates and strong password management systems to shore up digital defenses.
Hackers backing Tehran have following 鈥 but so far have not caused widespread disruptions.
While it lacks the or Russia, Iran has long used to steal secrets, score political points or frighten opponents.
Analysts have tied some of to groups working on behalf of . But in other instances, the groups appear to act independently.
