The Federal Board of Revenue (FBR) has issued a critical security update on its IRIS portal, urging users to take immediate action to ensure their data remains secure. As part of its efforts to enhance cybersecurity, the FBR will disable older TLS 1.0 and TLS 1.1 protocols and transition exclusively to TLS 1.2 and TLS 1.3 within 15 days. What Users Need to Know: Why This Update is Necessary Outdated security protocols, such as TLS 1.0 and TLS 1.1, are more vulnerable to cyber threats. Disabling these protocols is part of the FBR's commitment to protecting user data and ensuring secure communication on its systems. Steps for Users To maintain uninterrupted access to IRIS services, users must update their browsers to versions that support TLS 1.2 or TLS 1.3. Browsers that meet these requirements include: • Google Chrome: Version 30 and above • Mozilla Firefox: Version 27 and above • Microsoft Edge: Any version • Internet Explorer: Version 11 and above • Safari: Version 7 and above • Opera: Version 17 and above For Windows XP Users Users still operating on Windows XP, which does not support modern browsers, are advised to switch to Opera 36. This version supports TLS 1.2 and ensures basic compatibility. However, the FBR strongly recommends upgrading to a modern operating system for enhanced security. Verify Compatibility To check if your browser supports TLS 1.2 or TLS 1.3, visit tools like SSL Labs or similar online services. Verifying compatibility ensures you meet the updated security requirements. Important Advisory The FBR emphasizes that users must exercise caution when updating browsers or systems. Any updates or changes should be performed responsibly, as the FBR and its IT partner PRAL cannot take responsibility for third-party tools or external websites used during this process.