Credit: Paul Jones / Android AuthorityTL;DROne UI 9 beta integrates Lockdown mode directly into the power menu, instantly locking the phone and disabling biometrics upon triggering.Samsung removed the explicit “Lockdown mode” option from One UI 8.5, making the protective feature the default instead.While closing the power menu without choosing an option no longer returns you to your last-used app, automatically triggering lockdown mode prevents forced or unauthorized biometric access and requires a PIN or password to unlock, power down, or reboot the device.One UI 9 is on its second beta release, and we’ve been spotting new features it will bring to Samsung Galaxy phones and tablets. For instance, One UI 9 brings a unified call log, and also gives users control over Android 17’s Audio Hardening feature. Another new feature has been spotted, and it’s a small but important security change.Reddit user Aruun_16 spotted that invoking the power menu on One UI 9 beta returns users to the lock screen instead of the previous app.