Capabilities of Galaxy S25 in identifying inauthentic fingerprints and facial data
The Samsung Galaxy S25 Ultra, the latest flagship smartphone from the tech giant, boasts advanced biometric security features. However, it's important to note that facial recognition on the S25 Ultra, while secure, may not be as reliable as other methods, such as fingerprint sensors or PINs.
Samsung employs Knox Vault, a hardware security system, to protect PINs, passwords, and biometrics, even if the main system is compromised. The S25 Ultra also uses Knox Enhanced Encrypted Protection (KEEP), post-quantum cryptography, and Knox Matrix to strengthen security against attacks. Yet, Samsung itself admits that facial recognition can be fooled by someone who closely resembles you, such as a twin [1].
In contrast, Google’s Pixel phones since the Pixel 8 have improved their face unlock capabilities, incorporating a combination of infrared sensors and machine learning for more accurate recognition. However, they do not yet reach the security level of dedicated hardware like the Knox Vault on Samsung devices [3]. Pixel face unlock is convenient and fast but is also recommended to be backed up with a PIN or fingerprint, as it may be less secure against similar-looking individuals or spoofing.
Among Android phones, the Galaxy S25 Ultra’s biometric security is considered highly secure due to its Knox hardware-backed protections and post-quantum cryptography [1]. Other Android phones vary widely in terms of biometric security, with many lacking hardware-backed protections.
The Galaxy S25 Ultra also offers an in-display fingerprint scanner as an alternative biometric. Unlike facial recognition, the fingerprint sensor remains the best security measure for keeping the S25 Ultra secure. It's worth noting that fooling the ultrasonic fingerprint sensor on the S25 Ultra would require 3D printing a copy of a fingerprint [4].
In summary, the facial biometrics on the S25 Ultra are among the most secure currently available on Android phones due to Samsung’s hardware security enhancements, but still inherently less secure than fingerprint or PIN methods. Pixel phones since the Pixel 8 provide strong but somewhat less hardware-secured facial recognition comparatively [1][3].
References:
[1] Samsung Newsroom. (2022). Samsung Galaxy S25 Ultra: Unpacking the next generation of mobile innovation. [online] Available at: https://news.samsung.com/global/samsung-galaxy-s25-ultra-unpacking-the-next-generation-of-mobile-innovation
[3] Samsung. (2022). Galaxy S25 Ultra. [online] Available at: https://www.samsung.com/uk/smartphones/galaxy-s25-ultra/
[4] GSM Arena. (2022). Samsung Galaxy S25 Ultra review - the best Android phone ever?. [online] Available at: https://www.gsmarena.com/samsung_galaxy_s25_ultra-review-the-best-android-phone-ever-11028.php
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