Domains are an integral part of the internet. Similar to how people write different languages using different characters or scripts, domain names can be composed of various scripts in whole or in part, and are called Internationalized Domain Names (IDN). It is possible to create labels which look similar to combining characters from different scripts....

Recently, a collection of documents was released online, which was claimed to have originated with a major World power. The documents listed hacking vectors that could be used to inject code into major operating systems and numerous popular applications. Opera was no exception, with a couple of mentions on the list. The attacks mentioned for...

We would like to thank the researchers who have offered us their assistance throughout the year, to help enhance the security of our websites. Special mention goes to those who discover and report security issues: Johnny Nipper Mehmet Caner Köroglu of InnoveraBT Sadik Shaikh We would also like to take the opportunity to thank researchers...

During the past few days some of our users have contacted us raising the concern that the Qihoo 360 Total Security anti-virus software has been labelling the Opera installer executable for Windows as some form of malware (HEUR/QVM11.1.0000.Malware.Gen). The installer setup that we provide at opera.com is digitially signed by us, and we can assure...

Opera recently became aware that source code from our legacy browser engine, Presto, has appeared in some online code and file sharing sites. This code is the property of Opera Software and has been published illegally and without our permission. Opera has taken legal steps to have the source code removed from these sites. The...

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. Although we only store encrypted...