The FBI was warned of a cyberattack like Sony’s back in 2013

The Sony Pictures hack and its resulting fallout may have caught many people by surprise, but not the FBI — it apparently suspected for months that something like this might happen. The Intercept has obtained a December 2013 agency report warning that it was just a matter of time before a US company faced a “data-destruction attack” like the one that hit Sony, where malware deletes enough data to render systems unusable.

Nearly one year before Sony was hacked, the FBI warned that U.S. companies were facing potentially crippling data destruction malware attacks, and predicted that such a hack could cause irreparable harm to a firm’s reputation, or even spell the end of the company entirely. The FBI also detailed specific guidance for U.S. companies to follow to prepare and plan for such an attack. But the FBI never sent Sony the report. The Dec. 13, 2013 FBI Intelligence Assessment, “Potential Impacts of a Data-Destruction Malware Attack on a U.S. Critical Infrastructure Company’s Network,” warned that companies “must become prepared for the increasing possibility they could become victim to a data destruction cyber attack.”