Also, Change Healthcare sets a record, cybercrime cop suspect indicted, a new Mallox decryptor, and more

in brief  Senate intelligence committee chair Mark Warner (D-VA) is demanding to know why, in the wake of the bust-up of a massive online Russian disinformation operation, the names of six US-based domain registrars seem to keep popping up as, at best, negligent facilitators of election meddling. …