Classroom Notes: 3.2 Securing data

Personal data is any information that identifies a person, like their name, address, phone number, or ID details.

Ciphers keep information secret by converting readable data into coded text using mathematical rules, so only someone with the correct key can turn it back into the original message.

Encryption is the process of turning readable information into coded form so only authorized people with the right key can read it.

Decryption is the process of turning coded or encrypted data back into readable information using the correct key.

User authentication is the process of verifying a person's identity before granting access, usually through methods like passwords, PINs, biometrics, and facial recognition.

A strong password is one that is minimum 12 characters long, unique, and hard to guess, usually combining uppercase and lowercase letters, numbers, and special symbols.

Fingerprint authentication is a biometric security method that verifies a person's identity by scanning and matching their unique fingerprint pattern before granting access.

Facial recognition is a biometric technology that identifies or verifies a person by analyzing their unique facial features, such as the shape of the eyes, nose, and jaw.