ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,411, issued on June 10, was assigned to AO Kaspersky Lab (Moscow).

"System and method for recognizing undesirable calls" was invented by Daniil A. Yazovsky (Moscow), Dmitry V. Shvetsov (Moscow) and Vitaly S. Vorobiov (Moscow).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are systems and methods for recognizing undesirable calls on a remote device. In one aspect, an exemplary method comprises, generating, for each call, a call identifier from a probabilistic hash received from a secure device, the probabilistic hash having been computed by the secure device based on a unique call identifier associated with call data collected for the...