: Validated email/password pairs are used to hijack accounts to send mass spam or targeted phishing emails.
: Multi-Factor Authentication renders a "mailpass" pair useless on its own. 130K mailpass.txt
: The primary reason these lists remain effective years after the original breach. : Validated email/password pairs are used to hijack
: Aggregated data from multiple breaches can be used to build a complete profile of an individual. Defensive Measures 130K mailpass.txt