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Hackers, who have been causing repeated havoc on Sony networks, continued to defy the company by posting personal data and escalating rhetoric against the firm.

Sony Corp has defended its response to a massive Internet security breach in a letter to Connecticut Senator Richard Blumenthal, who has accused the company of dragging its feet in notifying consumers.

Sony said on Saturday it had removed from the Internet the names and partial addresses of 2,500 sweepstakes contestants that had been stolen by hackers from about 100 million user accounts of its PlayStation Network and PC-based online gaming services, said in a statement details posted on the inactive website also included three unconfirmed e-mail addresses.

Sony said on Saturday it had removed off the Internet the personal details of 2,500 people that had been stolen by hackers and posted on a website.

Hackers are preparing to target Sony with another major cyber attack because of the way it handled the first attacks last month, according to new reports.

The Sony data breach that compromised the personal data of more than 100 million customers of the Japanese electronics conglomerate may claim yet another victim -- the cloud computing industry.

The Federal Bureau of Investigation has raided a house near Tacoma, Washington in search of hackers who went after a really big target: legendary rocker Gene Simmons.

Sony Chief Executive Officer Howard Stringer apologized to users of its PlayStation Network and other online services, breaking his silence on the biggest Internet security break-in ever.

Sony has been subpoenaed by the New York State Attorney General in the wake of a hacking attack exposing the account records of 100 million customers.

A new report from IHS Research says 3-D TVs will become bigger as more content comes available, the price drops and manufacturer's market them differently.

Sony Chief Executive Officer Howard Stringer apologized to users of its PlayStation Network and other online services, breaking his silence on the biggest Internet security break-in ever, but failed to provide a date when services would resume.

Sony Chief Executive Officer Howard Stringer apologized to users for 'the inconvenience and concern' caused by the attack on its PlayStation Network. The following is the full text of the letter by Stringer posted in an official blog:

Sony executives were absent today as members of a House committee took turns blasting the company for the way it handled breaches of its PlayStation Network and Sony Online Entertainment this past weeks.

News is emerging that yet another online network may have been hacked, and this time, from a service that acts as a safe-deposit box for users other passwords.

The Internet vigilante group Anonymous denied responsibility for a cyber-attack on Sony Corp's networks that exposed the personal data of more than 100 million video gamers.

Sony's security was not updated and the PlayStation Network had little firewall protection, according to the testimony of a cybersecurity expert before Congress.

The hacker collective Anonymous has denied that it took part in the attack on Sony's systems, saying that the group or its members have not been known to steal credit card numbers.

Sony has been hit with a class action suit in Canada, seeking 1 billion Canadian dollars ($1.04 billion) in damages, in the wake of the security breaches of the PlayStation Network and Sony Online Entertainment.

Sony Corp blamed Internet vigilante group Anonymous for indirectly allowing a hacker to gain access to personal data of more than 100 million video game users.

Sony Corp blamed the well-known Internet vigilante group Anonymous for indirectly allowing a hacker to gain access to personal data of more than 100 million video game users.

U.S. Attorney General Eric Holder said on Wednesday that the U.S. Justice Department had an open investigation into the Sony Corp data breach.

Attorney General Eric Holder said on Wednesday that the Justice Department had an open investigation into the Sony Corp data breach.

Sony has offered new details on the cyber-attack that compromised account details of nearly 100 million users of its online gaming and music services.

Sony Corp waited two days after discovering data was stolen from its video game network before contacting law enforcement and did not meet with FBI officials until five days later.

Ever since the massive security breach in Sony's PlayStation network accounts came to light last month, there have been fears that other large networks could come under similar attacks. And these fears are well-founded according to a report.

Sony has hired outside investigators to help clean its networks and catch the people behind a massive breach that exposed the personal data of more than 100 million video game users.

Sony Corp. has reportedly hired three security firms to assist in the investigation of security breaches in the Sony Online Entertainment and PlayStation networks.

Los Angeles County Superior Court Judge Michael Pastor has delayed the high-profile manslaughter trial of pop star Michael Jackson's doctor Dr. Conrad Murray until September in the interest of justice.

Sony Corp. said that hackers had breached the Sony Online Entertainment site, resulting in it being shut down and compromising yet more customer information.