Justice Department says emails compromised in recent, massive cyber hack blamed on Russia

The Justice Department said Wednesday that agency's email accounts might have been compromised in the massive breach of federal agencies and businesses. 

The department said about 3% its emails were compromised but no classified systems are thought to have been affected, according to statement obtained by the Associated Press.

The U.S. intelligence community in a joint statement Tuesday said Russia was behind the roughly seven-month long hack, which appeared to be to gather information.