Photos taken with high-resolution cameras could be enough for scammers to reconstruct fingerprints with the help of AI.
A popular pose for photographs can hide unexpected cybersecurity risks. Peace sign selfies can expose fingerprint data from users to scammers and identity thieves.
Security experts say the classic “V” gesture can reveal enough fingerprint detail in high-resolution images for biometric information to be captured. reconstructed using artificial intelligence and image enhancement software.
The warning resurfaced after Chinese financial expert Li Chang said demonstrated the technique during a reality show corporate earlier this year. Using a celebrity selfie as an example, Chang showed how the fingerprint patterns visible in an ordinary peace sign photo could be enhanced and partially reconstructed.
According to reports about the demonstration, fingerprint extraction becomes highly viable when photos are taken up close. Images captured approximately 1.5 meters from the individual can potentially reveal complete fingerprint detailswhile photographs taken at distances of up to three meters can still expose about half of the usable biometric data, explains .
The concern is not entirely new. Researchers have been warning about fingerprint exposure in photographs since at least 2017, but advances in smartphone cameras and AI-powered enhancement tools significantly increased the potential risks.
During the televised segment, Chang used photo editing software and artificial intelligence to improve fingerprint patterns which initially appeared blurry or indistinct to the naked eye. The resulting images revealed detailed structures, similar to those used in biometric authentication systems.
Cybersecurity experts warn, however, that the threat should not be exaggerated. Successfully reproducing usable fingerprints from photographs still requires favorable conditions, including high image quality, strong lighting, proximity, and ideally multiple photos of the same person.
casual internet users unlikely to face danger immediate response from random scammers browsing social media. However, the rapid improvement and increasing accessibility of AI image processing tools are closing the gap between what was once considered impractical and what is now increasingly viable.
As a precaution, Li Chang advised social media users to blur or hide your fingertips before posting close-up hand gestures online. Some experts also recommend avoiding high-resolution images that prominently show fingers or palms.
