Iranian Hacker Group Pay2Key Attacks Top Israeli Defense Corporation, Leaks Data on Dark Web By Iran Cyberattack Iranian-linked hackers have targeted and compromised Israel Aerospace Industries (IAI) and leaked sensitive data on the dark web. The attack comes in the backdrop of Iranian pledge to retaliate against the killing of key Iranian nuclear scientist Mohsen Fakhrizadhe last month. Pay2Key, which carried out the cyberattack against Israel, is a hacker group that had evaded scrutiny in recent years. The hack, which was unveiled Sunday night, also targeted various Israeli defense industry corporations. The hackers posting a that teases the Israelis by asking which Israeli organization was the "most secure".