Key

1. Information technology - cybersecurity.

A code that is used to encrypt messages or other information, or to convert encrypted information back into normal text - or other normal information.

2. Security - security systems.

A physical device that allows access to secured - or confidential - parts of a physical or virtual environment.

Physical keys may incorporate electronic components.

3. Adjective.

Of high importance, to focus on.

For example, a Key Performance Indicator (KPI).

See also

• Cryptography
• Cybersecurity
• Dual key
• Encryption
• Information technology
• Key Attributes
• Key control indicator (KPI)
• Key Information Document
• Key performance indicator (KPI)
• Key risk indicator (KPI)
• Private key
• Public
• Public key
• Public key encryption
• Public key infrastructure
• Quantum computing
• RSA encryption
• Security