Microsoft has confirmed that a number of Xbox Live accounts held by senior employees have been targeted by hackers.
In a statement issued to The Verge, the company said: "We are aware that a group of attackers are using several stringed social engineering techniques to compromise the accounts of a handful of high-profile Xbox Live accounts held by current and former Microsoft employees."
Microsoft added: "We are actively working with law enforcement and other affected companies to disable this current method of attack and prevent its further use. Security is of critical importance to us and we are working every day to bring new forms of protection to our members."
The news follows reports yesterday claiming Microsoft's newly launched Xbox Entertainment Awards service has been hit by a security breach resulting in sensitive information of voters being compromised.
Voting has been suspended and the awards service is currently offline for maintenance, with Microsoft's official line being that it's "experiencing technical difficulties" with the landing page and investigating the matter.