ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,715, issued on Oct. 7, was assigned to Kyndryl Inc. (New York).

"Preventing access of removed users to messages shared in a group chat" was invented by Cesar Augusto Rodriguez Bravo (Alajuela, Costa Rica) and David Alonso Campos Batista (Aurora, Costa Rica).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments relate to preventing access of removed users to messages shared in a group chat with an end-to-end encryption. An aspect includes, responsive to creation of a group having members for communicating using encryption keys, receiving a request to remove a given member of the members from the group, the given member being associated with a comp...