Long-time FIDE watchers may raise an eyebrow in irony at the mention of a FIDE Ethics breach...
but this is nonetheless a story of some importance. Garry Kasparov and Ignatius Leong were found guilty by "many FIDE Commissions" of offering and accepting a bribe (or something very close to it) in order to influence the result of a chess game or an election to FIDE office. (Apparently FIDE-related bribes are otherwise ethically acceptable.) Given the autocratic nature of FIDE and the fact that Kasparov was running for the presidency against the eternal incumbency of Kirsan Ilyumzhinov, the various commissions don't really appear to be the most impartial bodies, impervious to the sway of vested interests.
N.B.: I am not saying that Kasparov and Leong are innocent; I do not have the relevant evidence. I am saying that FIDE's track record is such that one can (very) reasonably doubt the judicial independence of a FIDE commission tasked with evaluating the conduct of someone so implacably opposed to Ilyumzhinov.
There's more info at the link above, and if any of you have been following this case closely and can offer further information, please provide it in the comments section. And a closing curiosity: it says that the possible penalties include "revocations of titles and sports results". Is that limited to the period of the offense, or could FIDE in principle rewrite history and vacate Kasparov's undisputed world championship reign from 1985 to 1993?