: To exploit "password reuse," where a user uses the same login for a low-security site and a high-value financial or streaming account.
If your information is part of a combo list, you should act immediately: Combolists and ULP Files on the Dark Web - Group-IB
Attackers use automated tools to perform , systematically testing these millions of pairs against popular services like Netflix , PayPal , and e-commerce sites (often referred to as "Foo" in technical jargon).