If you suspect your data might be in such a list, update your Netflix credentials immediately.

The "UHQ" tag stands for Ultra High Quality , which in the context of data leaks suggests the credentials have a high "hit rate" or success percentage when used for automated login attempts.

The data is "targeted" because it has been curated or filtered specifically for Netflix, often harvested from other breaches where users reused the same passwords. Context in Cybersecurity