"Digital Dark Age"

It was three days before Thanksgiving, the beginning of a quiet week for Sony Pictures. But Michael Lynton, the studio’s chief executive, was nonetheless driving his Volkswagen GTI toward Sony’s lot at 6 a.m. Final planning for corporate meetings in Tokyo was on his agenda — at least until his cellphone rang.

The studio’s chief financial officer, David C. Hendler, was calling to tell his boss that Sony’s computer system had been compromised in a hacking of unknown proportions. To prevent further damage, technicians were debating whether to take Sony Pictures entirely offline.

Shortly after Mr. Lynton reached his office in the stately Thalberg building at Sony headquarters in Culver City, Calif., it became clear that the situation was much more dire. Some of the studio’s 7,000 employees, arriving at work, turned on their computers to find macabre images of Mr. Lynton’s severed head. Sony shut down all computer systems shortly thereafter, including those in overseas offices, leaving the company in the digital dark ages: no voice mail, no corporate email, no production systems.

Sony Cyberattack, First a Nuisance, Swiftly Grew Into a Firestorm - NYTimes.com

NYT's walkthrough of the colossally bad Sony hack.