Submission + - Fingerprints are Unhashable making fingers weaker than passwords (hackaday.com)
szczys writes: Fingerprints aren't secure since you leave them on almost everything you touch. Many people won't realize that fingerprints can be captured and reproduced from casual photographs. It's actually worse than that. The very method with which fingerprints are stored is much weaker than passwords. Fingerprints cannot be hashed. By their very nature, each read of your fingerprint will be a little different which breaks the hashing method. They can only be stored using encryption which requires the same master password each time a new print read is compared to the stored key — a much weaker method than salted hashes which opens these credentials up to theft and brute forcing.