The American vigilante hacker known as Jester (whose signature graphic is shown above) took a swipe at Russia for hacking U.S. sites. The self-described “gray hat” hacker who calls himself “Jester” hacked the Russian Ministry of Foreign Affairs website Friday night. His message: “Stop attacking Americans,” according to CNNMoney. Anyone who visited the

Ministry website after the hack first heard the intentionally loud, annoying, attention-demanding dial tone sound that plays just before American emergency broadcast civil alert messages. Jester’s letter to the Ministry displayed in full on the site’s homepage. The letter, which no longer appears on the site but was still visible Saturday, went …FULL REPORT