Apple warned millions of iPhone users about the immediate need to install security fixes released six weeks ago. Essas updates fix serious vulnerabilities in the system that were already being exploited by attackers.
Many devices remain exposed because owners have not updated. The company emphasized that the six-week period represents a critical window to maintain device protection.
Security experts highlight that flaws in WebKit, an essential component of the Safari browser, allow remote attacks without user interaction. Delays in installing patches increase the risk of compromising personal and device data.
Vulnerabilities identified at the end of 2025
Apple identified two critical flaws in WebKit in December 2025. Essas vulnerabilities allowed arbitrary code execution via malicious web pages.
Sophisticated attackers were already exploiting these issues before the patches were released. The company confirmed active exploration and released emergency updates to mitigate risks.
Analysts note that flaws in WebKit are particularly dangerous due to widespread exposure in everyday browsing. The fix required profound changes to the page rendering engine.
Impact on devices with older versions
Users remaining on iOS 18 face limitations on available fixes. Apple has targeted major security updates for iOS 26 on supported devices.
This strategy left hundreds of millions of iPhones without complete protection against certain threats. The forced transition to the latest version aims to standardize security across the installed base.
Older devices receive limited patches. The company prioritizes compatibility with recent hardware to implement advanced protection features.
Many owners are reluctant to update due to reports of instabilities in early versions of iOS 26. Adoption of the new version remains below 25% among eligible users.
Adoption statistics and associated risks
Data indicates that more than 60% of active iPhones still operate with some variant of iOS 18. Essa slow migration exposes a significant portion of the user base.
Apple has recorded more than 25 security fixes in the iOS 26.2 update alone. Qualquer one of these flaws can be exploited on non-updated devices.
- Hundreds of millions of devices without recent reboots;
- Lack of protection against zero-click exploits;
- High risk when browsing compromised websites;
- Possible leakage of sensitive data without prior warning.
Experts recommend regular restarts as a complementary measure. The practice eliminates persistent threats in the device’s memory.
Benefits of Immediate Update
Updating to iOS 26 provides comprehensive protection against known flaws. The process combines patch installation with automatic system restart.
Users gain access to improvements in privacy and performance. The latest version strengthens encryption in cross-platform communications.
Apple prepares the release of iOS 26.3 with an additional focus on security. Essa update must include specific fixes for residual vulnerabilities.
Owners of models from iPhone 11 onwards get full support. The company maintains updates for older devices separately.
Next steps recommended by the company
Apple recommends checking the availability of updates in the settings menu. The process takes just a few minutes on stable internet connections.
Users should prioritize immediate installation to avoid prolonged exposure. The combination of update and restart restores the maximum level of protection.
- Access Ajustes > Geral > Atualização from Software;
- Download and install the available version;
- Restart the device manually if necessary;
- Enable automatic updates for the future.
The company continues to monitor emerging threats. Novas corrections will be distributed according to risk identification.
Importance of Regular Reboot
Restarting your iPhone periodically eliminates threats that reside in volatile memory. Agências suggest weekly practice as a preventive habit.
Few users adopt this routine despite official recommendations. Forced updating helps enforce large-scale restart.
The measure complements permanent software fixes. Recently restarted Dispositivos have a smaller attack surface.
Preparation for future updates
iOS 26.3 should arrive by early February with compatibility improvements. The release strengthens encryption of RCS messages in interplatform communications.
Users who update now avoid accumulating multiple pending issues. Regular maintenance reduces risks of mass exploitation.
Apple is committed to data protection across all ecosystems. The current strategy reflects the constant evolution of cyber threats.
The six-week window highlighted by the company serves as a global warning. Milhões of devices require immediate action to preserve system integrity.
