Members of the Anonymous group, who have recently attacked the ACS:Law website, have now published a database containing the company's emails on the Internet.
Anonymous is currently leading a Distributed Denial of Service (DDoS) campaign dubbed "Operation Payback" against film and recording industry organizations, as well as other associated outfits.
Amongst them are ACS:Law and Davenport Lyons, two UK-based law firms, that sent letters to thousands of alleged file sharers asking for money to avoid legal action.
Following an attack against ACS:Law's website on Tuesday, the firm's head Andrew Crossley, told The Register: "Big whoop. It was only down for a few hours. I have far more concern over the fact of my train turning up 10 minutes late or having to queue for a coffee than them wasting my time with this sort of rubbish."
Several security experts warned afterwards that it's not wise to mock Anonymous, a very determined group, which doesn't hold back from using illegal means to harass organizations. And it looks like they were right.
A torrent uploaded yesterday evening on The Pirate Bay is called "ACS-Law leaked emails" and contains a 365 MB .rar archive with what seems to be a backup of all of the company's mailboxes.