Sony Corp.¡¯s Tokyo headquarters is changing its usual arm¡¯s-length relationship with its U.S. studio following a massive cyberattack and the controversy over the comedy ¡°The Interview,¡± with the group CEO being consulted on key decisions, company officials said.

Before the devastating hack, Sony Pictures Entertainment Inc. was relatively independent of the Tokyo headquarters, despite the company¡¯s slogan that it is ¡°One Sony¡± across an empire of movies, music, gadgets and even insurance.

But group CEO Kazuo Hirai has become more involved after the hacking, which debilitated Sony Pictures¡¯ computer network and led to the online leaks of unreleased movies and embarrassing email. It is considered the biggest attack of its kind on U.S. soil.