: A slider to determine how many "workers" are checking accounts simultaneously.
Today, these tools are mostly obsolete for major providers. Multi-Factor Authentication (MFA), device fingerprinting, and behavioral analysis mean that even if a "checker" finds a valid password, the login will be blocked because the "bot" doesn't look like a human on a recognized device. mail access checker.exe
If you were to look at the UI of a "legitimate" (but illicit) checker, you would typically see: : A slider to determine how many "workers"
If you ever encounter a file with this name, checking it on VirusTotal almost always results in a "Maximal Risk" rating, often flagged as Trojan.Generic or PasswordStealer . mail access checker.exe