Iran-affiliated hackers remain a potential threat to critical sectors of the US economy, including defense contractors and other American organizations, according to a bulletin published Monday from the FBI, the National Security Agency, the Cybersecurity and Infrastructure Security Agency and the Defense Cyber Crime Center.
The bulletin warns that those with relationships with Israeli research and defense firms were particularly at risk. Hackers affiliated with the Iranian government and hacktivist organizations routinely target poorly secured US computer networks and internet-connected devices for disruptive cyberattacks, according to the report.
“Over the past several months, Iranian-aligned hacktivists have increasingly conducted website defacements and leaks of sensitive information exfiltrated from victims,” the bulletin said. Those groups are likely to increase distributed denial-of-service attacks against US and Israeli websites “due to recent events,” according to the statement.
Iranian hackers affiliated with the Islamic Revolutionary Guard Corps waged a campaign of cyberattacks between November 2023 and January 2024 during the Israel-Hamas conflict, the bulletin says. The attackers included dozens of victims in the US in waste and wastewater, energy, food and beverage manufacturing and health care.
The warning follows a ceasefire between Iran and Israel that ended 12 days of conflict.
Copyright 2025 Bloomberg.
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