1. Iran's Cyber Restraint Toward the US Just Ended
While nuclear talks were live, Iran pointed its cyber arsenal at dissidents and neighbors, not the United States. The US and Israel just bombed Tehran.
Three rounds of US-Iran nuclear talks produced no deal. On February 28, the US and Israel launched joint strikes across Tehran, Isfahan, Qom, Karaj, and Kermanshah. Iran fired back at Israeli cities and US military bases in Qatar and Bahrain. Within hours, Iranian internet connectivity dropped to 4% of normal levels. That wasn't collateral damage. Iran activated its "Barracks Internet," a two-tiered system built on Huawei infrastructure that gives global access only to security-cleared users and locks 85 million citizens onto a regime-controlled intranet. Foreign telecom partners had already been escorted out of the country weeks earlier.
During the diplomatic window, Iranian cyber groups stayed active but avoided US targets. RedKitten targeted Iranian protest supporters using AI-built malware disguised as lists of killed demonstrators. MuddyWater launched Operation Olalampo across the Middle East with four new malware families, including a Rust backdoor with AI-generated code. CrescentHarvest ran espionage against regime critics. All of it pointed inward or regional. None of it pointed at the United States.
The question is what happens now. Iran's track record may answer it. After Stuxnet destroyed centrifuges in 2010, Iran built an offensive cyber program from scratch. After the US killed Soleimani in 2020, Iranian actors probed US critical infrastructure within days. After the US and Israeli strikes on Iranian nuclear facilities last June, the response was immediate and coordinated. Over 250,000 Telegram messages showed hacktivist proxies mobilizing for DDoS, defacement, and data theft alongside military operations. MuddyWater used compromised CCTV cameras in Jerusalem to help target missiles and assess strike damage. CyberAv3ngers reactivated malware built specifically for industrial control systems. During those same June strikes, the US used offensive cyber operations to disable Iranian air defenses. U.S. Cyber Command took public credit. Iran watched, and learned.
CISA is currently operating at 38% staffing during the government shutdown that began February 14. NSA and U.S. Cyber Command are awaiting Senate confirmation of a new leader. The last time Iran escalated, the response required NSA, CISA, FBI, and DC3 issuing a joint advisory within nine days. Whether that coordination can move at the same speed with reduced staffing is an open question.