Integrity ensures that information is correct and complete and is protected against unauthorized or unintentional modification. It ensures the reliability and accuracy of data by ensuring that it is not tampered with or corrupted. This is achieved through measures such as data validation, checksums and logging of changes.
Both ISO 27001 and BSI basic protection require measures to maintain data integrity. This includes regular checks of data consistency and the implementation of control mechanisms to detect and prevent unauthorized or inadvertent changes. These measures help to ensure the trustworthiness and accuracy of the data.