Learn about the new Lock screen security changes in Samsung One UI 9

Samsung has strengthened Lock screen security features on devices with One UI 9.0 to better protect personal data from unauthorized brute-force attacks (repeated random password attempts). If the maximum number of allowed attempts is exceeded, the device will be permanently locked, necessitating a full factory reset for reuse. These updated measures help safeguard against data breaches, making it important to carefully manage and remember your PIN, Pattern, or Password.
A pink Galaxy Z Flip8 and purple Galaxy Z Fold8 displaying lock screens behind a padlock graphic.
A pink Galaxy Z Flip8 and purple Galaxy Z Fold8 displaying lock screens behind a padlock graphic.

Learn about the new Lock screen security changes in Samsung One UI 9

Note
Available features, settings, and menu options may vary by device and software version.

How do I check the One UI version for my device?

To ensure your device is running the latest One UI version, follow these steps:

  1. Open Settings on your device.
  2. Swipe to and tap About phone or About tablet.
  3. Tap Software information.
  4. The current One UI version will be shown.
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The number of allowed unlock attempts suddenly seems much lower. Why?

To protect your privacy and personal data from brute-force hacking attempts, the maximum number of unlock retries has been reduced in One UI 9.0.

To help minimize user inconvenience while maintaining high security, the system now provides:

  • Clear notifications of your remaining retry attempts. 
  • Explicit guidance text when repetitive incorrect entries are made.
  • Smart counting that excludes identical consecutive incorrect attempts (entering the same wrong password twice back-to-back will not count as two separate failures).

It is highly recommended to double-check your PIN, Pattern, or Password before typing it.

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What exactly has changed compared to previous One UI versions?

In One UI 9.0, the total allowed attempts before a lockdown are reduced, and the temporary input restriction (lockout duration) is strictly enforced. As the number of consecutive failures increases, the time-out duration before you can try again will scale up progressively at each stage.

The lockout durations based on number of failed attempts are as follows:
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The lockout durations based on number of failed attempts are as follows:

Number of Failed Attempts

Lockout Duration

5 attempts

1 minute

6 attempts

5 minute

7 attempts

15 minute

8 attempts

30 minute

9 attempts

90 minute

10 attempts

4 hours

11  attempts

12 hours

12 attempts

24 hours

Note
On the 13th failed attempt, the Galaxy device will be permanently locked and can only be unlocked by performing a factory reset of the device.

I use biometric security (fingerprint/face recognition). Do I still need to remember my password?

Yes. Even if you primarily use biometric authentication, Android's core security policy (Strong Authentication) requires you to enter your backup PIN, Pattern, or Password at least once every 72 hours. It is crucial that you memorize and securely keep track of this backup credential.
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Can I see how many unlock attempts I have left?

Yes. Once you reach a specific threshold of failed entries, a warning message will explicitly display the exact number of remaining attempts right on your lock screen so you are fully aware of your device's security status.
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What should I do if I completely forget my Lock screen password?

For security reasons, Samsung cannot remotely view, retrieve, or recover your local lock screen PIN, Pattern, or Password. If it is completely forgotten, a device factory reset will be required to regain access. After a factory reset, you will be required to authenticate with the registered Samsung Account and Google Account to clear the Factory Reset Protection (FRP) lock.

To protect your important information, we strongly advise setting up regular cloud or smart switch backups.
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