Samsung security flaw allows your fingerprint to unlock any Galaxy S10

Samsung security flaw allows your fingerprint to unlock any Galaxy S10

The bug came to light last weekend when British tabloid The Sun ran a story about a British woman who discovered that anyone's fingerprint could unlock her Galaxy S10 smartphone.

There's no word on how quickly Samsung will push out the fix but expect more news soon.

In a statement, Samsung advises that all users should remove any silicone screen protectors from their devices, delete and re-enroll their fingerprints and wait for the software update to arrive.

But it appears the company might have more problems to contest with. While initial units had a removable screen protector (that wasn't actually created to be removed), the final release models have a screen protector with its edges tucked behind the screen. The in-screen scanner uses ultrasound to detect the ridges of users' fingers and match it to stored data. However, the same type of ultrasonic sensor is fitted to the Note 10. It's possible that this is linked to previous reports that other unofficial screen protectors caused issues with the fingerprint sensor because they left a small air gap, which interfered with the ultrasound.

A screen protector is created to be transparent to the eye, but not to an ultrasonic pulse. However, Brownlee didn't try registering a fingerprint after applying the screen protector.

Samsung is also rumoured to be replacing the transparent plastic protective layer on the current Fold with scratch-resistant ultra-thin glass (UTG) on the new Fold 2.

What it doesn't explain is how can the sensor mistakenly recognize these patterns as your fingerprint in the first place.

Speaking of the software patch, the Korean manufacturer says this patch is set to be released as soon as next week.

Alternatively, if it's a desperate situation, rather be safe than sorry and get the brand's official (and quite costly) screen protector.

Related Articles