Some Google Pixel 6a users have reported issues with the built-in fingerprint reader that allows any fingerprint (owner or not) to unlock their new phone, causing a security issue.
According to posts on Reddit and a few YouTube videos, the Pixel 6a’s fingerprint sensor (UDFPS) makes it possible to unlock the device with any fingerprint, regardless of who set up the scanner first, whether the fingerprint or thumb is registered or not.
The problem seems to be scattered and does not affect a majority of buyers. One user said the problem stopped after deleting and re-adding all stored fingerprints.
Google released an update on Thursday that brings the Pixel 6a to the June security patch, starting in April. However, it’s unclear if this is likely just a bug that can be fixed via a software update or a hardware issue on affected phones.
Google hasn’t formally addressed these issues or noticed anything about this issue yet, but hopefully the company is aware of the situation and will fix it soon.
As a workaround, users affected by the issue can disable fingerprint unlock (Settings app > Security > Unlock Fingerprint > Delete) and just use a PIN or password unlock.