Customers visiting it were redirected to the fake website of Italian credit agency, whose goal was to steal confidential information.
It is the latest incident pitting Sony and the hackers. Last April, they attacked the PlayStation network and stole information on more than 77 million accounts. In early May, the same thing happened about 25 million users of Sony Online Entertainment for players on PC.
The Japanese giant has also had to close its PlayStation Network and other services for a period of slightly less than a month.
Some have accused Sony of not adequately protect its networks and to wait until a week before informing its customers of possible theft of their credit card information.
Earlier this week, Sony has shut down a website that allows its users to change their passwords after discovering a security hole.
“Sony is in a rigorous process of seeking loopholes and plug them. But hackers follow the same process and find vulnerabilities before Sony has time to repair”, says Josh Shaul, the company’s computer security Application Security.