By CHASE GUMMER
FRANKFURT—The German programmer who has taken responsibility for Heartbleed—an encryption bug affecting millions of passwords—said on Friday that he accidentally inserted the bug into open-source coding that he was trying to improve.
Robin Seggelmann, a German national who now works for T-Systems, a unit of Deutsche Telekom AG DTE.XE -0.49% , said on a blog entry posted by the company that the problem occurred while he was working on bug fixes for OpenSSL, a popular open-source software that helps encrypt data exchanges. (WSJ)
