Iran-Linked Hackers Target 30 Minnesota Water Systems Amid U.S. Warnings

On July 26-27, 2026, suspected Iran-linked hackers breached over 30 Minnesota water utilities, exploiting a critical vulnerability in Rockwell PLC systems. This attack occurred just four days after the Cybersecurity and Infrastructure Security Agency (CISA) issued a warning about the unpatchable flaw. Investigators are now examining whether this cyber campaign affected systems in seven other states, including Michigan. The FBI, EPA, and CISA have not officially attributed the attacks to Iran, but there is a strong consensus among experts. The attacks are part of a broader pattern of cyber operations attributed to Iran against U.S. infrastructure. Donald Trump has publicly blamed Minnesota Governor Tim Walz for the incident, despite the evidence pointing towards Iranian involvement. The situation remains under investigation as authorities assess the full scope of the attack.

Key Points: • Over 30 Minnesota water systems were breached by suspected Iran-linked hackers. • The attack exploited a critical vulnerability in Rockwell PLC systems, which is unpatchable. • Investigators are exploring the possibility of similar attacks in seven other states.