Billions Spent on U.S. Cyberdefenses Failed to Detect Giant Russian Hack

Billions Spent on U.S. Cyberdefenses Failed to Detect Giant Russian Hack
The broad Russian espionage attack on the U.S. government and private companies, underway since spring and detected only a few weeks ago, is among the greatest intelligence failures of modern times.

The National Security Agency’s headquarters at Fort Meade, Md., is home to a cyberwar room guiding efforts that cost tens of billions of dollars.Credit...Jim Lo Scalzo/European Pressphoto Agency