Mfixer1 — Bitly

That’s a 60% error margin. Good luck reporting that to your boss.

A pop-up on a shady website tells you to “Download the mfixer1 tool” via a Bitly link. The tool is ransomware. bitly mfixer1

It is not a human user. It is not a hacker (in the malicious sense). It is likely part of a security service, a scraping tool, or an infrastructure monitor that automatically clicks your Bitly links to verify they are still alive and not pointing to malware. That’s a 60% error margin