A hacker has breached an Opera sync server, putting at risk users’ passwords.
The Internet browsing company, in a blog post, said that the attack was “quickly blocked,” but passwords and account information, such as login names, may have been accessed by the hackers.
“Although we only store encrypted (for synchronized passwords) or hashed and salted (for authentication) passwords in this system, we have reset all the Opera sync account passwords as a precaution.”
The majority of Opera’s 350 million users do not need to take any action. Only the 1.7 million who use Opera sync are impacted by the breach. Opera has sent e-mails to all Opera sync users to ask them to change the password for their accounts. The company is also urging users to reset passwords to any third-party sites that are synched with the service.
“We take your data security very seriously, and want to sincerely apologize for the inconvenience this might have caused,” the company said.