Israel-Iran War: Hacktivist Groups' Claimed Activity Surges

While Exceptions Apply, Such Efforts Often Only Amount to Psychological Operations Mathew J. Schwartz (euroinfosec) • June 20, 2025

Missile exchanges over the skies of Israel and Iran entered their eighth day, wreaking death and destruction. Hacktivists are taking that as their cue to join the fray, although whether their efforts function as anything more than psychological operations is unclear.

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Security experts said a massive increase in online attacks tied to the conflict began almost immediately after Israel first struck military and nuclear program targets inside Iran on June 13. Hacktivist groups claim to have been defacing websites, launching distributed-denial-of-service attacks and leaking stolen data. Wiper and banking malware also appeared.

Experts track more than 70 hacktivist ...