I believe this was a false sanction, but I was bowing people on Ulti, then went up to spawn and stood there to go read my messages on another application, then go back to minecraft and see that I was sanctioned for unauthorized modifications. I did not see the words detection at the end, and I'm curious on why I was sanctioned. The only mods I do have on my launcher, are Optifine, and Damage Indicators. I haven't used any illegal modifications in a long time now.