fingerprint
The Italian term for fingerprint is "impronta digitale". It is used in the same context as in English, often in relation to forensic science or security measures. For example, one might say, "L'impronta digitale non corrisponde a quella trovata sulla scena del crimine", meaning, "The fingerprint does not match the one found at the crime scene".
You can use your fingerprint to unlock the phone.
In this sentence, the fingerprint is being used as an alternative to a password or a pin for unlocking a phone. This is common in many modern smartphones and similar devices.
The police found a fingerprint at the crime scene.
This sentence implies that a fingerprint was found at the place where a crime occurred, a common method used by the police in order to identify suspects.
The building's security system requires a fingerprint for access.
This phrase explains a security measure used in some buildings where, in order to gain access, one's fingerprint is required. This is a way of implementing biometric security measures.