Galaxy S10 users should enable some alternative security features as Samsung works to address major flaws with devices in the fingerprint sensor screen. The consumer electronics giant flagged the problem today after a British user reported being able to unlock their device with unregistered fingerprints.

The flaw was discovered after placing a $ 3.50 screen protector on the device, confirming earlier reports that the addition could introduce an air gap that interferes with the ultrasound scanner. The company noted the problem in a statement, telling the press that it was, ?aware of the S10 case?s faulty fingerprint recognition and will soon issue a software patch.

Third-party companies, including Korean Bank KaKaoBank, have suggested that users disable the reader until the problem is resolved. This certainly seems to be the most logical course of action until the next software update.

When it hit the market back in March, the company touted the technology as one of the industry’s most secure biometric features, noting that it was, engineered to be more secure than a traditional 2D optical scanner, the industry’s first Ultrasonic fingerprint ID, with sensors built into the display, reads the 3D contours of your physical fingerprint to keep your phone and data safe. This advanced biometric security technology has brought the Galaxy S10 the world’s first Fido Alliance biometric component certification.

Samsung has cautioned against using screen protectors before, but the ability to trick a product with a cheap off-the-shelf mobile accessory clearly presents a serious and unexpected security concern for Galaxy users. Weve contacted Samsung for further comment.

Update: Samsung provided TechCrunch with the following comment,? We are looking into this issue and will be rolling out a software patch soon. We encourage all customers with questions or who need support downloading the latest software to contact us directly at 1-800-SAMSUNG.