Never reuse passwords. A manager allows you to have a unique, 20-character password for every site without needing to remember them all.
Files labeled as "125k Combo" are frequently used as "honey pots." When you download and open the .txt or .zip , they often contain hidden malware, such as info-stealers or ransomware, designed to infect your computer. Download 125k Combo Mail Access txt
A combo list is a text file containing thousands—sometimes millions—of username/email and password pairs. These are typically harvested from previous data breaches at major websites. Never reuse passwords