League of Legends players won't be able to use third-party skins on their characters as part of Riot's crackdown on scammers, community coordinator Ben "Riot Draggles" Forbes announced via the game's forums.
According to Forbes, the response is a reaction to an increase in fraudulent activity in which sites will promise limited edition skins, acquire codes illegitimately and take advantage of players.
"They charge excessive prices (we found one skin for over $1,000!) and sometimes take payment and never provide the content," Forbes wrote. "You can't predict the outcome, and no purchase is ever guaranteed regardless of what the seller says. To make matters worse these services typically use bots. Bots are lame to play with and chew up additional server bandwidth, negatively impacting everyone."
Riot is working with payment processors to prevent payments from being processed to begin with. All previously issued skin codes will be deactivated today as well, though players who acquired their skins legitimately can send proof of ownership to Player Support.
Riot will not remove content or skins that were redeemed prior to the announcement. Players won't be able to claim codes after July 23 "for any reason."