What is Data Retention?

Data retention is a compliance area where multiple frameworks intersect with legal and regulatory requirements. Organizations must navigate conflicting obligations: tax records may need retention for 7 years, HIPAA requires PHI retention for 6 years from creation or last effective date, while GDPR's storage limitation principle demands that personal data be kept no longer than necessary for its original purpose. A comprehensive data retention policy classifies data by type, assigns retention periods based on legal, regulatory, and business requirements, specifies storage locations and security controls for each period, and defines secure disposal methods (cryptographic erasure, physical destruction, or certified data wiping). Implementation challenges include managing retention across distributed systems and SaaS tools, handling litigation holds that override standard retention schedules, and ensuring backup systems honor retention periods. SOC 2 auditors review retention policies and verify that data disposal procedures are followed. Organizations should automate retention enforcement wherever possible to reduce the risk of non-compliance.