One UI 9 makes Galaxy phones harder to break into after repeated wrong PIN attempts

Samsung has introduced a stricter lock screen security policy in its One UI 9 software, based on Android 17. The update implements progressively longer lockout periods for repeated incorrect PIN attempts, culminating in a permanent device lock after 13 failed tries.
Why it matters
These enhanced security measures significantly increase protection against brute-force attacks, though they risk permanent data loss for users who forget their credentials.
When Samsung unveiled One UI 9 based on Android 17 alongside the Galaxy Z Fold 8 and Z Flip 8, flashy AI features and interface refinements naturally grabbed most of the attention. But one of the most important changes for everyday users isn't something you'll notice until someone repeatedly enters the wrong PIN.
Samsung has now detailed a brand-new lock screen security policy for One UI 9, and it's designed to make brute-force attacks significantly more difficult. If someone keeps guessing your PIN, password, or pattern, they'll quickly run into progressively longer lockout periods before eventually locking the device permanently.
For most Galaxy users, it's one of those changes you'll hopefully never experience firsthand. But it's exactly the kind of protection you want working quietly in the background.
One UI 9 adopts Android 17's tougher security rules
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