Outline 4 ways in which data integrity may be maintained

1. Regular validation and verification: Regularly validating and verifying data ensures that it remains accurate and up-to-date. This can involve conducting audits, reconciliations, and cross-checking data against other sources.

2. Data encryption: Encrypting data both in transit and at rest helps protect it from unauthorized access and ensures that it remains secure. Encryption techniques scramble data in a way that only authorized users with the appropriate decryption key can access it.

3. Access control: Implementing strict access control measures, such as user authentication, role-based access controls, and limiting access to sensitive data, helps prevent unauthorized individuals from modifying or manipulating data. This ensures that only authorized personnel can access, modify, or delete data.

4. Data backup and disaster recovery: Regularly backing up data and having robust disaster recovery plans in place help ensure that if data is lost, corrupted, or compromised, it can be quickly restored. This helps maintain data integrity by ensuring that a secure and reliable copy of the data is available in case of accidental deletion, natural disasters, or cyber attacks.