🔒 Lock (6)

Lock emoji cover commonly used symbols for security and privacy, including closed 🔒 lock, open 🔓 unlock, lock with pen 🔏, key with lock 🗝️, as well as 🔑 key and 🗝️ old key. These symbols are widely used for account security, file encryption, privacy settings, or physical access control, and can also metaphorically represent secrets, protection, or unlocking new features.