Opera displays a security badge in the address field. A lock indicates a secure webpage. Clicking the security badge displays security information, including information about the website’s certificate.
Not all webpages are what they say they are. Malware, or malicious software hidden throughout the Web, can also be a security threat. Fraud and Malware Protection, enabled by default in Opera 10 and later, warns you about suspicious webpages by checking the page you request against a database of known “phishing” and “malware” websites.
Extended Validation (EV) represents the highest security available today. An EV certificate is issued under strict criteria by a trusted third party, and verifies that the certificate owner is who they claim to be.
Opera supports Secure Socket Layer (SSL) version 3, and TLS. Opera offers automatic 256-bit encryption, the highest available security of any web browser.
Opera gives you specific control over what cookies to accept and reject, such as allowing for different set-ups for different servers.
In Opera 10.5x, private tabs allow you to browse without leaving any trace of the websites you visit. When you close a private tab, the history, cache and data related to the tab is deleted.
Opera can be configured to clear the history and cache when exiting, to protect your privacy. Any kind of private data can easily be erased.
Read about Opera’s security and privacy features and learn how to get the most out of them in our Guide to security and privacy in Opera.
Opera performs regular checks to make sure you can have the latest, most secure release: Download Opera | Read the Changelogs
Keep up-to-date on the latest security issues with our security advisories.
Opera is committed to keeping you safe when you use our products. Read our security policy to find out more about this commitment.
If you believe you have found a security issue that concerns Opera, please report it in our bug tracking system.