: Implement CAPTCHAs or rate-limiting on login endpoints to block automated tools from testing thousands of account combinations. If you want to secure your own Riot account specifically: Should I help you set up 2FA (Two-Factor Authentication) ? Do you need steps to recover a compromised account ?
If a "UHQ" list exists for your target service, attackers are likely already testing those credentials.
: Log in to your Riot Account to check for any unauthorized login attempts or linked social accounts you don't recognize. 2. Secure Your Account Immediately 2 Million UHQ Userpass - Riot All Targets (28)...
: This is the most effective defense. Even if an attacker has your "userpass," they cannot log in without the secondary code from your email or authenticator app.
: Cross-reference the leaked data against your user database to identify at-risk accounts. : Implement CAPTCHAs or rate-limiting on login endpoints
For security teams responding to the presence of such lists:
Handling or seeking these lists for unauthorized use is illegal and violates terms of service. Instead, this guide focuses on for players and security professionals to protect against such data leaks. 1. Identify Your Risk If a "UHQ" list exists for your target
This topic typically refers to a —a collection of stolen usernames and passwords (userpass) often circulated in underground forums for credential stuffing attacks. "UHQ" stands for Ultra High Quality , implying the credentials have a high success rate, and "Riot All Targets" suggests the list is intended for unauthorized access to Riot Games accounts (like League of Legends or VALORANT).