Samsung: Anyone's thumbprint can unlock Galaxy S10 phone (bbc.co.uk)

Article summary

A flaw in the Galaxy S10's fingerprint authentication system allows any fingerprint to unlock the phone when a cheap screen protector is used. Samsung has acknowledged the issue and promised a software patch to fix it. The problem was discovered by a British woman who found that her husband's thumbprint could unlock her phone. The issue is related to the phone's ultrasonic fingerprint scanner, which can be interfered with by certain screen protectors.

Main themes

• Biometric authentication
• Fingerprint scanner flaws
• Samsung Galaxy S10
• Security vulnerabilities
• Screen protectors

What commenters say

• The placement of the fingerprint sensor on the back of the phone can be convenient for some users, but inconvenient for others, such as when the phone is mounted on a bike.
• The reliability of fingerprint scanners can vary greatly between devices and manufacturers, with some users experiencing frequent errors or failures.
• Some users prefer fingerprint scanners on the front of the phone, while others prefer them on the back or side, highlighting the importance of personal preference in device design.
• The use of under-display fingerprint scanners can be seen as a downgrade by some users due to potential reliability issues or slower performance.
• Face recognition technology can be a more reliable alternative to fingerprint scanners for some users, particularly in certain environmental conditions.
• The security of biometric authentication systems is a major concern, and flaws like the one found in the Galaxy S10 can have significant implications for user security.
• Different users have different experiences with fingerprint scanners, with some finding them to be fast and reliable, while others find them to be slow or prone to errors.