What is Information Security?
Information Security (InfoSec) refers to the set of strategies, processes, and tools used to protect sensitive data from unauthorized access, disclosure, alteration, or destruction. It ensures the confidentiality, integrity, and availability (CIA triad) of both digital and physical information.

Key Objectives of Information Security
Confidentiality
Protecting information from unauthorized access and keeping it private. Example: Encrypting sensitive files or securing user login credentials.
Integrity
Ensuring information is accurate and unaltered during storage, transmission, or processing. Example: Using checksums or hashing to detect unauthorized changes.
Availability
Making sure information and systems are accessible to authorized users when needed. Example: Implementing redundancy and backup systems to prevent downtime.