Anonymous attacked quickly and attacked with force when they went after several high profile hacking targets from late 2010 through early 2011. Now, there’s a chance that some of them will be punished for the acts.

Thirteen alleged members of the loosely organized hacker collective known as Anonymous were indicted Thursday in connection with a series of online attacks on US companies and trade groups.

The indictment unsealed in Alexandria, Virginia, charged the 13 with attacks between September 2010 and January 2011 on the Motion Picture Association of America, Recording Industry Association of America, Visa, Mastercard, Bank of America and others.

The defendants were charged with organizing denial of service attacks aimed at shutting down the websites of the targets known as “Operation Payback.”