An anonymous reader writes "The free game with every graphics card deal has finally backfired for AMD and Codemasters. Due to a lack of .htaccess, 1.7 million keys for a free copy of DiRT 3 on Steam have been leaked. No word from AMD or Codemasters yet, but I'm sure Valve will block all the codes on Steam soon. One question that remains: if you used one of the codes, will Steam ban your account? There could be a few very unhappy gamers later today if that happens." The exact number of keys is in question — reports range from 250,000 to 3 million — but AMD confirmed that a leak did occur.