Riot’s decision to mandate Secure Boot is controversial but effective. It raises the bar for cheaters and improves game integrity. The good news is that enabling Secure Boot also makes your entire system more secure, not just Valorant.
Secure Boot is usually disabled by default on custom-built PCs. valorant uefi secure boot
Very few modern PCs (post-2012) lack Secure Boot. However, if you’re on older hardware: Riot’s decision to mandate Secure Boot is controversial