Apparently the cause of the LastPass incident was LastPass failure to have employees maintain a sterile environment. One of the requirements for a sterile environment is that dedicated company computers be used to busyness work and nothing else. The employ computer that was compromised was his personal computer. A clear violation of maintaining a sterile environment. LastPass failed to train and/or enforce this critical security procedure. I hope that they have now hired a competent IT security company to assess there environment and then address all issues found. Then do annual compliance audits.
As for Plex being involved, Plex has not announced what there password compromise was. The important thing for anyone using Plex is to change there Plex password and even more important if thy reuse that password to change it everywhere it's used.
