Opera has confirmed that hackers broke into the company’s sync servers, potentially exposing users passwords. The Norway-based mobile web browser company had warned customers recently about a possible breach in its sync system. The company claimed that though it quickly blocked the attack, some user information may have got compromised. “Earlier this week, we detected signs of an attack where access was gained to the Opera sync system. This attack was quickly blocked. Our investigations are ongoing, but we believe some data, including some of our sync users’ passwords and account information, such as login names, may have been compromised.”, the company and that the login credentials are encrypted, Opera is taking no chances with the login credentials of its users. It says that, “our investigations are ongoing, but we believe some data, including some of our sync users’ passwords and account information, such as login names, may have been compromised,” the company said in a blog post.