What are three methods that can be used to ensure confidentiality of information?

Encryption: Encrypting sensitive information using encryption algorithms and keys can prevent unauthorized access.

Access controls: Implementing strict access controls, such as authentication and authorization mechanisms, can restrict access to sensitive information to only authorized personnel.

Data masking: Applying data masking techniques, such as replacing sensitive data with random characters or symbols, can help protect the confidentiality of information when shared or displayed.