The CIA Triad stands for Confidentiality, Integrity, and Availability. These are the basic rules for keeping data safe:
1. Confidentiality: Keeps information secret and makes sure only the right people can access it. For example, using a password or a code to log into an account to keep it secure.
2. Integrity: Ensures the data stays accurate and hasn’t been changed by anyone who shouldn’t have access. An example is checking if a file has been altered after it’s saved.
3. Availability: Ensures that authorized people can get to the data whenever they need it. This includes having backup systems in place in case something goes wrong, like a server crash.
Authentication vs. Authorization
• Authentication: Verifying who you are. This is when you enter your username and password to prove your identity.
• Authorization: Deciding what you can do. After logging in, it checks if you can see your grades or just check messages.
In short:
• CIA Triad keeps data private, accurate, and accessible.
• Authentication is proving who you are.
• Authorization is deciding what you’re allowed to do once you’ve logged in.
Both are important for keeping data safe.