Microsoft engineer Andres Freund accidentally found the malicious code in versions of the XZ Utils compression tool, likely preventing thousands of infections (Mike Larkin/Security Boulevard)

Mike Larkin / Security Boulevard:

Microsoft engineer Andres Freund accidentally found the malicious code in versions of the XZ Utils compression tool, likely preventing thousands of infections  —  Yesterday’s discovery of the xz backdoor was an accident.  But what a fortunate accident it was.