Gaining access to other services (Amazon, Netflix, etc.) linked to that recovery email.
Use Yahoo's Account Security settings to turn on Two-Step Verification.
The "Yahoo" designation suggests these credentials are specifically for Yahoo Mail accounts.
"UHQ" stands for Ultra High Quality , a marketing term used in the community to claim the list is "private" (not yet public), "hits" frequently (high success rate), or contains valid, active accounts rather than old data. Technical Analysis & Usage