Since \@SlackHQ messages aren't end-to-end encrypted, everyone should be cautious about what you say about your boss on that platform. They might be reading it... #MakeDMsSafe
https://arstechnica.com/tech-policy/2022/11/musk-fires-twitter-engineers-for-correcting-criticizing-him-on-twitter-slack/amp/
Musk fires Twitter engineers for correcting, criticizing him on Twitter, Slack

As many as 14 Twitter employees fired for tweets, Slack messages.

Ars Technica

@team
Are messages on other tools end-to-end encrypted? I always thought that MS Teams only encrypts calls.

One should probably never treat conversations on company infrastructure as private.

@Zollak @team both platforms have the ability to allow management to read anything you type.
@Zollak @team As far as I know, nothing you can really get away with using. Companies worry about legal compliance, and that often means being able to submit entire archives upon subpoena.
@team Musk is giving a master class in 'terrible boss'. Plenty of them around, but never before have antics like this been in the national spotlight. He's destroying his brand and the ones he runs. I'd be freaking if I was a large Tesla stockholder.
@team no one should expect privacy on corp owned tools ever.
@team There are also commercial services that specialize in archiving and monitoring everything that is posted in a Slack org. They started out as being used for discovery for legal matters, but it didn't take long for them to be used by execs to spy.
@drwho @team I'm surprised third party tools are needed, given the name stands for "Searchable Log of All Communications and Knowledge"

@mr64bit @team Some of it is that it is extremely difficult to get everything out of the API. Nontrivial amounts of dev time are required, which can be construed as obstruction.

A couple of companies were started that provide that service or sell software that does. They're also designed to maintain chain of custody for legal purposes. They're definitely faster than anything one can hack together quickly. Some are on the GS so they can be used in a federal context (I don't know if there are any .govs that permit the use of third party communication platforms like Slack these days, been gone from the Beltway since 2013).

Definitely a thing in finance, which is how I found out about it.