Data Security, Privacy & Integrity
Data security means protecting data from unauthorised access, modification, loss or destruction. This lesson covers data privacy, the main ways of protecting data, such as encryption, authentication, access control, backups and physical security, and the threats they guard against, then finishes with exam questions.
Key terms
- Data security
- Protecting data from unauthorised access, corruption, loss or theft.
- Data privacy
- The right of people to control how their personal data is collected, used and shared.
- Authentication
- Checking that a user is who they claim to be, for example with a password or a fingerprint.
- Access control
- Making sure only authorised users can reach particular data or systems.
- Encryption
- Scrambling data so it cannot be read without the correct key.
- Backup
- A copy of data kept separately so it can be restored after loss or corruption.
- Physical security
- Measures such as locks, ID badges, CCTV and biometric entry that stop unauthorised people reaching hardware.
- Malware
- Software designed to damage a system or steal data, such as viruses, worms, trojans, spyware and ransomware.
Part of Security, Privacy and Data Integrity.