If you’re a business with a contract with them it should state that they won’t use your data to train their models.
If you’re using the free service then you’re right that it’s safe to assume that your data was already being used.
If you’re a business with a contract with them it should state that they won’t use your data to train their models.
If you’re using the free service then you’re right that it’s safe to assume that your data was already being used.
You have to trust the contract.
If you use Microsoft 365 or Google Workspace etc then they already have all your data anyway. Most businesses have to trust other companies and the contract at some point.
The only other option is to use Open Source self hosted everything which is beyond most people’s ability.