US Patent Issued to International Business Machines on June 23 for "Ransomware mitigation using versioning and entropy delta-based recovery" (Illinois, Texas Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,265, issued on June 23, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Ransomware mitigation using versioning and entropy delta-based recovery" was invented by Mark Duane Seaborn (Algonquin, Ill.) and Jacqueline Hegedus Wilson (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mitigation system protects data in a data store that is not yet encrypted by a successful ransomware attack against encryption. Data is stored in the data store as a set of versions identified in a data tree, and a version can only be updated by writing a new version to the tree. Access controls to prevent modification of the tree are also ...