Opera Privacy and Security Team

Prompt injection in Opera Neon: Rapid response through responsible disclosure Strengthening AI agentic browsers with the help of security best practices like responsible disclosure and collaboration.

Addressing these challenges requires collaboration and openness - applied security practices like responsible disclosure can provide more secure experiences in agentic browsers, just like they do in traditional browsers. Learn more: blogs.opera.com/security/202...

In the agentic internet, security is a key consideration, as AI Agentic browsers challenge the current security model of the internet. For example, last week we addressed a vulnerability with the help of external researchers that relied on a prompt injection attack.

Prompt injection in Opera Neon: Rapid response through responsible disclosure Strengthening AI agentic browsers with the help of security best practices like responsible disclosure and collaboration.

Agentic browsing presents new security challenges as it changes the way the web works. Today, we're sharing a case that demonstrates the importance of collaborating with security experts to spot and address threats. Learn more: blogs.opera.com/security/202...

Protected with Opera Neon: Understanding agentic browser security Opera Neon opens up new possibilities online but agentic browsers also face new threats. Here's a primer on agentic browser security.

Opera Neon opens up new possibilities online but agentic browsers also face new security threats. With that in mind, we wanted to share a primer on agentic browser security and how Opera Neon addresses such concerns. Learn more: blogs.opera.com/security/202...

Update your browser: Security fix for Chrome zero-day CVE-2025-10585 Chromium's latest release addressed new vulnerabilities. Security updates have been released for Opera - get the latest versions now.

Important security update: Opera's browsers have received a security fix for the latest Chromium 0-day: CVE-2025-10585.

Update now to the latest versions:
Opera One (122.0.5643.51)
Opera GX (122.0.5643.52)
Opera Air (121.0.5600.92)
Opera for Android (91.5)

blogs.opera.com/security/202...

Update your browser: Security fix for Chrome zero-day CVE-2025-6558 Chromium's latest release addressed new vulnerabilities. Security updates have been released for Opera - get the latest versions now.

Important security update: Opera,
Opera GX, & Opera Air have received a security fix for the latest 0-day vulnerability in Chromium: CVE-2025-6558.

Update now to the latest versions:
Opera One (120.0.5543.93)
Opera GX (120.0.5543.85)
Opera Air (120.0.5543.86)

blogs.opera.com/security/202...

Hello! Thanks for the tip, we'll look into it!

Update your browser: Security fix for Chrome zero-day CVE-2025-6554 Chromium's latest release addressed new vulnerabilities. Security updates have been released for Opera - get the latest versions now.

Important security update: @operabrowser.bsky.social, Opera GX, Opera Air, and Opera for Android have received a security fix for the latest zero-day vulnerability in Chromium: CVE-2025-6554.

Learn more: blogs.opera.com/security/202...

Update your browser: Security fixes for latest Chrome zero-day Chromium's latest release addressed new vulnerabilities. Security updates have been released for Opera - get the latest versions now.

Important security update: @operabrowser.bsky.social, Opera GX, Opera Air, and Opera for Android have received a security fix for the latest zero-day vulnerability in Chromium: CVE-2025-5419

Learn more: blogs.opera.com/security/202...

Update your browser: Security fixes for latest Chrome zero-day Chromium's latest release addressed new vulnerabilities. Security updates have been released for Opera - get the latest versions now.

Important security update:
@operabrowser.bsky.social and Opera GX have received a security fix for the latest zero-day vulnerability in Chromium: CVE-2025-2783

Update now to the latest versions:
- Opera version 117.0.5408.163
- Opera GX version 117.0.5408.162

blogs.opera.com/security/202...

Remember, Data Privacy Day is the perfect opportunity to learn more about protecting your privacy online. Stay informed about the latest privacy and security updates from Opera on our dedicated blog: blogs.opera.com/security/

How Opera for Android’s revamped ad blocker improves your browsing experience Opera for Android's improved ad blocker allows you to configure your ad blocking experience according to your needs.

Let’s not forget our mobile friends! Did you know that Opera for Android now has a new and improved built-in ad blocker? You can customize your ad blocking experience even further, with an Enhanced mode powered by uBlock and AdGuard. See how it works: blogs.opera.com/security/202...

Protecting your privacy: Opera has completed an independent no-log audit of its free browser VPN Opera's free browser VPN for Opera, Opera GX, and Opera Mobile has completed an independent no-log audit by trusted auditor Deloitte.

One of Opera’s key privacy features is our built-in VPN. But did you know it has been independently audited to ensure that it collects absolutely no data, protecting your privacy? That’s right - our no-log policy has been audited by Deloitte. Read more: blogs.opera.com/security/202...

Is Opera Browser safe? | Secure private browser | Opera Opera is a safe browser, built to protect your data and your privacy. Opera Browser helps you browse privately and securely, without being tracked.

Want to learn more about the ways that Opera protects your privacy? Take a look at our revamped Privacy & Security page for a full breakdown of Opera’s privacy features, security practices, and how we protect your data. www.opera.com/secure-priva...

Design featuring the Opera browser logo and the headline "Data Privacy Day, January 28"

January 28th is #DataPrivacyDay! This is a day to remind ourselves about the importance of protecting our personal data online. Let's have a look at all the latest ways Opera helps you safeguard your online #privacy and take control of your data.

How Opera for Android’s revamped ad blocker improves your browsing experience Opera for Android's improved ad blocker allows you to configure your ad blocking experience according to your needs.

Opera for Android 86 is out, and one of the standout features is an improved and more powerful ad blocker! Get more control over your browsing experience with features like the Enhanced Mode powered by uBlock and AdGuard. Learn more:
blogs.opera.com/security/202...

Protecting your privacy: Opera has completed an independent no-log audit of its free browser VPN Opera's free browser VPN for Opera, Opera GX, and Opera Mobile has completed an independent no-log audit by trusted auditor Deloitte.

Why is an independent audit important? It's one more proof point for you as a user when you choose to trust a service or a brand. With this audit by Deloitte, a trusted independent auditor, we strengthen our guarantee to protect your privacy. Read more: blogs.opera.com/security/202...

Screenshot of Opera's free browser VPN. The caption reads: "No logs. No tracking. Independently audited."

We’re excited to announce that we completed an independent audit of our no-log policy for our free browser VPN, conducted by Deloitte! The audit reaffirms our commitment to protecting user privacy by certifying that your data is never logged or stored when you use our free VPN.

Hello BlueSky! Hope everyone is staying safe and secure. 🔒