Not sure if this is still a feature of the Slack API, but in an older version you could set your name and avatar when sending a message. I trolled our internal

Not sure if this is still a feature of the Slack API, but in an older version you could set your name and avatar when sending a message. I trolled our internal GitHub for exposed tokens then wrote a simple bot that used the token from some random app and sent messages as “Servicedesk Bot”. It proved reasonably effective. I was on the security team and had permission, which is important if you are going to do stuff like this.