I remember when they stories came out they were released in a suspiciously coordinated way. Once one died off another was released to build up momentum again and keep the idea humming in the public consciousness.

I figured that it was done by a big party that had a trusted relationship with tech journalists because they bigged up vulnerabilities that were relatively minor to journalists who didnt seem to be aware of it.

It's possible it wasnt Microsoft but the pattern of stories indicated Zoom was a public relations target of someone who freaked out after seeing how fast they were growing and MS certainly took full advantage.