“There are two kinds of cryptography in this world: cryptography that will stop your kid sister from reading your files, and cryptography that will stop major governments from reading your files.”

–Bruce Schneier

The world has changed, and we must change with it.
Barack Obama

One more problem with biometrics: they don’t fail well. Passwords can be changed, but if someone copies your thumbprint, you’re out of luck: you can’t update your thumb. Passwords can be backed up, but if you alter your thumbprint in an accident, you’re stuck. The failures don’t have to be this spectacular: a voice print reader might not recognize someone with a sore throat, or a fingerprint reader might fail outside in freezing weather. Biometric systems need to be analyzed in light of these possibilities.

Esta característica únicamente estaba limitada por software. Personalmente me parece muy abusivo, Apple no debería hacerlo.

Vía: Applesfera
Link a Mac Rumors