The White House has confirmed that the unclassified Executive Office of the President network has been breached by unknown hackers.
The US Federal Bureau of Investigation has announced that its internal Malware Investigator portal - previously available only to law enforcement and government entities - will soon be accessible to private sector businesses and non-profit organizations, as well.
The FBI and DHS have issued a warning to businesses about the increase in security incidents involving malicious insiders (current or former employees, contractors, or other business partners).
The US government's explanation of how it managed to discover the location of the servers hosting Silk Road, the infamous online black market, is being disputed by a number of security researchers.
In the wake of reports that several big US financial institutions have had their networks compromised by hackers this month, the FBI and the Secret Service have mounted an official investigation.