In an updated privacy policy, the company will now be able to record voice chats made in the game. However, Riot says that they will only listen to recorded chats if a report has been filed, meaning that these chats will be used as evidence should a player file a report against another player for harassment.
While the system is still being developed, Riot made the announcement to give its community a heads up. They will be launching it in beta in North America first before moving to other regions and other languages. Note that this only applies to the in-game system, meaning that if you don’t want to have your chats logged, then you’ll have to use a third-party service like Discord.
However, we suppose given that Riot is putting this system in place, more players might be inclined to use the game’s in-game voice chat as it might give them a sense of security and puts them at ease because they know there is evidence should other players start harassing them.