ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,260, issued on March 17, was assigned to KIWONTECH Co. LTD. (Seoul, South Korea).

"Email security system and operation method thereof for blocking and responding to targeted email attacks, which perform inspection of unauthorized email server access attack" was invented by Chung Han Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an email security system and an operation method thereof for blocking and responding to targeted email attacks, which perform inspection of unauthorized email server access attack, and the method comprises the steps of: configuring security threat information synchron...