Iranian hackers blamed for breach of Los Angeles transit system that took weeks to recover

Researchers say an Iranian-backed group was behind a March breach of the Los Angeles County Metropolitan Transportation Authority.

The attackers allegedly stole and deleted data, then used a fake hacktivist front to mask the operation.

The incident is part of a broader pattern of Iran-linked cyberattacks on critical infrastructure.

The case highlights growing risk to U.S. transit, health care, and other essential services.