Lettera del consumatore

buongiorno, vorrei il vostro parere a proposito di un inquietante messaggio e-mail ricevuto questa mattina (oltretutto l'allegato conteneva un virus, che il mio antivirus ha neutralizzato!).
vi riporto il testo di seguito:.
Ladies and Gentlemen, Downloading of Movies, MP3s and Software is illegal and punishable by law.
We hereby inform you that your computer was scanned under the IP 201.142.25.94. The contents of your computer were confiscated as an evidence, and you will be indicated.
You get the charge in writing, in the next days.
In the Reference code: #47458, are all files, that we found on your computer.
The sender address of this mail was masked, to protect us against mail bombs.
- You get more detailed information by the Federal Bureau of Investigation -FBI-.
- Department for "Illegal Internet Downloads", Room 7350.
- 935 Pennsylvania Avenue.
- Washington, DC 20535, USA.
- (202) 324-3000.
..........
vi sembra una cosa verosimile o e' una bufala?
come mi devo comportare?
grazie e cordiali saluti chiara, da Borgomanero