Trustworthy Vacuuming and Litigation Holds in Long-term High-Integrity Records Retention

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Provided by: Association for Computing Machinery
Topic: Data Management
Format: PDF
Relational databases are periodically vacuumed to remove tuples that have expired. During the discovery phase of litigation, plaintiffs ask defendants for access to information related to their case. The requested information is then subject to a litigation hold, which means that the information cannot be deleted. Vacuuming exposes a database to a new threat - adversaries can try to thwart database auditing mechanism by masquerading an illegal tuple deletion as a vacuuming operation, and delete an unexpired tuple, or a tuple under a litigation hold.
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