Information Security: Principles and Best Practices

Information Security: Principles and Best Practices Information security helps protect people, data, and services. It rests on three core ideas: confidentiality, integrity, and availability. This is known as the CIA triad. In practice, confidentiality means keeping sensitive data secret from the wrong people. Integrity means data stays accurate and unaltered. Availability means systems and services work when users need them. For individuals, simple habits make a big difference. Use strong, unique passwords and enable multi-factor authentication whenever possible. Keep devices updated, and beware of links or attachments in unexpected emails. Limit what personal information you share online and review app permissions regularly. ...

September 21, 2025 · 2 min · 371 words