Iran imposed a nationwide internet and telephone blackout as a preemptive measure to counter potential Israeli cyber attacks, citing concerns over escalating tensions and possible U.S. involvement in the ongoing conflict. The Ministry justified the shutdown as necessary to prevent exploitation of the country’s communication infrastructure by adversaries, as reported by the semi-official Tasnim news agency. The blackout disrupts critical services relied upon by civilians, businesses, and government entities, including financial transactions, emergency communications, and public utilities.The move reflects fears of large-scale cyber disruptions targeting national infrastructure, potentially crippling essential services such as banking, healthcare, and government operations. While framed as a defensive action, the shutdown itself inflicts severe economic and societal harm, isolating Iran from global digital networks and exacerbating internal instability. The threat model suggests adversaries could exploit vulnerabilities to disrupt energy grids, telecommunications, or defense systems, escalating the conflict into a hybrid warfare scenario with cyber dimensions. The blackout underscores the high-stakes nature of cyber threats in geopolitical conflicts, where digital attacks can paralyze entire nations and trigger broader regional instability.