Riot’s MFA is the single most effective defense against credential stuffing.
Contrary to popular belief, these lists rarely come from a direct breach of Riot Games. Instead, they are compiled from older, unrelated data breaches (like LinkedIn or Adobe). Since many users reuse passwords, attackers "stuff" these credentials into the Valorant login portal to see which ones work.
High-rank accounts (Immortal/Radiant) are sold to players who want to skip the "grind." [526k]User-Pass Valorant target.txt
Attackers use "checkers" (automated scripts) to run the [526k] list through Riot's authentication. The script automatically sorts the results into categories: Hits: Accounts with valid logins.
Use tools like Have I Been Pwned to see if your email was leaked in the breaches that feed these combo lists. Riot’s MFA is the single most effective defense
Accounts in specific regions or with high-tier unlocks are more liquid in underground forums.
The script "scrapes" the account for its rank, skin inventory, and VP (Valorant Points) balance. Bad: Invalid credentials. Since many users reuse passwords, attackers "stuff" these
Use a unique password for your Riot account that isn't shared with any other service.