Computer hacker
Official: Russia suspected in Pentagon email hack
01:31 - Source: CNN

Story highlights

Military officials assessed that the attack had a sophistication that indicates it came from a state-associated actor

The spear phishing attack into the email of the Pentagon's Joint Staff "exposed a new and different vulnerability" than has been seen in the past

Washington CNN  — 

The U.S. military believes hackers connected to Russia are behind the recent intrusion into a key, unclassified email server used by the office of the Joint Chiefs, though there is no final conclusion, a U.S. official familiar with the latest assessment of the attack’s impact said Thursday.

Military officials assessed that the attack had a sophistication that indicates it came f