Federal authorities have warned the American public about a so-called warrant scam targeting victims who are told to pay a non-existent fine. The warning comes after scammers stole more than $10,000 from one person.

The latest FBI warning includes toll scams, but adds bogus messages from package delivery companies, Forbes reports. The tactic is known as “smishing” — a combination of “SMS (Short Message Service ice) and “phishing” — and it uses text messages to trick people into giving out sensitive personal information.