What counts as unlimited
The bot reads USDT Approval events. A normal limited approval is ignored. An allowance large enough to spend the balance without a ceiling raises the alarm. A zero spender is skipped.
The warning arrives before the balance leaves. Revoke the approval if you did not sign it. This check runs on BSC and Ethereum, not on TRON.
It does not spend your USDT
The bot only reads public chain data for wallets you added. It cannot sign a revoke for you. The alarm tells you which contract received the unlimited allowance.
Questions
Does the bot warn about unlimited USDT approval?
Yes. On BSC and Ethereum, an unlimited USDT approval raises a Telegram alarm with the spender contract.
Is an approval the same as a transfer?
No. An approval only gives permission. The tokens stay put until that contract later pulls them. The alarm is there so you can revoke first.