Those personal plans are hard to manage. As an administrator I can't control settings across the org if everyone is on their own plan which means people may be giving sensitive code/data away to Anthropic or sketchy connectors without my knowledge.
So most businesses at least use the Anthropic Team plan, which is $25 or $125 but isn't as generous as the personal max plans. Overage is API rates. Almost all of our devs are over the allotment most months.
Team or not, data still goes to Anthropic.
Whatever data the employees have access to, you can assume it goes to Anthropic.
Although the connectors do add to that.
I'd limit what the employees can access to limit what goes to Anthropic.
Sure but I can get ZDR on a Team plan, on the personal plans they train on your data.