‘Golden Age Of SIGINT May Be Over’: New Encryption Foils IC Eavesdropping

The US government cannot control the skyrocketing use of encrypted communications that allow adversaries, terrorists, criminals — and ordinary folks who care deeply about privacy, including journalists — to block eavesdropping by national security agencies, says a new study funded by DARPA and the Center for Advanced Studies on Terrorism (CAST).
“The ‘golden age of SIGINT’ may be over, particularly within the next five or ten years,” the study, “Going Dark: Implications of an Encrypted World,” finds. The traditional methods of collecting signals intelligence and eavesdropping on communications used by the Intelligence Community (IC) will no longer be effective. “End-to-end encryption of all communications and data, differential privacy, and secure communications for all users are likely to be the new reality,” the study says.