2 件の回答
The Salesforce OrgID is pretty meaningless. Some Salesforce Partner apps want it to authenticate access, but even then they still need a valid username/password to log in. Often, a vendor will ask for it so they can more easily find your org's record in their installed licenses list.
Feel free to share it around. Users don't need the org Id to log in, and having the org Id doesn't allow anyone to log in without a user account.