About to paste an email, a contract or a log file into a chatbot, a forum or a support form? Strip out the personal details first. Detection runs on this page; the text never goes anywhere.
Read the result before you send it. Pattern matching catches the usual formats, but it can't recognise every name, address or account number in context. Add anything it missed to the word list above. IBANs and card numbers are checked with their own checksums, so random digit strings aren't flagged.