File Integrity refers to the assurance that a file remains unchanged and uncorrupted over time. It involves monitoring files to detect any unauthorized alterations, deletions, or additions. Maintaining file integrity is crucial for data security, as it helps protect sensitive information from tampering or accidental loss. To ensure file integrity, various methods can be employed, such as using checksums or hash functions. These techniques create a unique digital fingerprint for each file, allowing users to verify its authenticity. Regular audits and monitoring systems can also help identify any discrepancies, ensuring that files remain reliable and trustworthy.