Iran cyberattack blackout and war risks

When missiles fly, we expect explosions. We expect smoke, sirens and satellite images. What we do not expect is silence. On February 28, 2026, as fighter jets and cruise missiles struck Iranian Revolutionary Guard command centers during Operation Lion’s Roar, a parallel assault reportedly unfolded in cyberspace. Official news sites and key media platforms went offline, government digital services and local apps failed across major cities, and security communications systems reportedly were widely disrupted, plunging Iran into a near-total digital blackout.

According to NetBlocks, a global internet monitoring organization that tracks connectivity disruptions, nationwide internet traffic in Iran plunged to just 4 percent of normal levels. That level of collapse suggests either a deliberate state-ordered shutdown or a large-scale cyberattack designed to paralyze critical infrastructure. Western intelligence sources later indicated the digital offensive aimed to disrupt IRGC command and control systems and limit coordination of counterattacks. For the United States and its allies, the episode offers a stark reminder that modern conflict now blends airstrikes with digital warfare in ways that can ripple far beyond the battlefield.

In a matter of hours, modern conflict looked less like tanks and more like a blinking cursor.

Iran internet shutdown: A country offline in real time

Reports described widespread outages across Iran. Official news sites stopped functioning. IRNA, Iran’s state-run news agency, went offline. Tasnim, a semi-official news outlet closely aligned with the Islamic Revolutionary Guard Corps, reportedly displayed subversive messages targeting Supreme Leader Ali Khamenei. The IRGC, Iran’s powerful military and intelligence force, plays a central role in national security and regional operations. At the same time, local apps and government digital services failed in cities like Tehran, Isfahan and Shiraz.

This was not one website defaced for headlines. It appeared systemic. Electronic warfare reportedly disrupted navigation and communications systems. Distributed denial of service attacks, often called DDoS attacks, flooded networks with traffic to overwhelm and disable them. Deep intrusions targeted energy and aviation systems. Even Iran’s isolated national internet struggled under pressure. For a regime that tightly controls information, losing digital command creates both operational and political risk.