The "220K" in the filename indicates that the list contains approximately 220,000 entries. This suggests a substantial collection of credentials.
: "HQ" stands for high quality, implying the list has been "cleaned" or "checked" to ensure a high percentage of the logins still work, rather than being old, defunct data. How They Are Used These lists fuel two primary types of cyberattacks: Credential Stuffing : Using automated tools like OpenBullet 220K MAIL ACCESS VALID HQ COMBOLIST MIX.zip