(AP) -- Still reeling from a series of high-profile hacker attacks, Sony has named Andrew House as the president and group CEO of its video game unit, Sony Computer Entertainment.

House, who's been heading Sony's games business in Europe, replaces Kazuo Hirai, who will now serve as the chairman of . The changes are effective Sept. 1.

Sony Corp. said on Wednesday that Akira Sato, the chairman of its games unit, will retire at the end of August.

House joined Sony in 1990 and was instrumental in launching the first PlayStation . He was later promoted to vice president of marketing at Sony's U.S. video game business. He became head of Sony's European games unit in 2009.

Sony has been trying to recover from a slew of embarrassing since April. In the biggest breach, hackers compromised the security of 100 million credit card-backed accounts on the PlayStation Network.