Malicious software that scrapes browser autofill data, cookies, and passwords directly from a victim's infected device.
They are weaponized in credential stuffing attacks, where hackers exploit the common habit of password reuse to try the same credentials across hundreds of different platforms, such as banking, social media, or corporate portals. Common Sources of Credentials
A (short for combination list) is a curated text file containing massive volumes of stolen email addresses and corresponding passwords. These files are specifically formatted for use in automated cyberattack tools to gain unauthorized access to accounts. Understanding Combo Lists Download Combo list NEW EMAIL txt
Attackers compile these lists through various illicit methods:
Typically organized as email:password (e.g., user@example.com:password123 ). These files are specifically formatted for use in
Large-scale thefts from companies like LinkedIn or Adobe where user databases are exposed.
Deceptive emails designed to trick users into manually entering their credentials on a fake website. Learn more about Password Combo List notification Deceptive emails designed to trick users into manually
Combo lists differ from simple "leaked databases" because they are often cleaned, de-duplicated, and aggregated from multiple different breaches.