A real-world case study in passive threat intelligence and open-source investigation. Disclaimer: This research was conducted exclusively for educational purposes and passive threat intelligence. No systems were breached, no credentials were used without authorization, and no sensitive identifying data is reported in this article. All information collected comes from publicly accessible sources: S
CoderLegion charges $10/month premium while running hidden ads, faking their founding date, inflating user counts by 70%, and sending bulk emails with mail merge errors. Full technical proof. Every claim verified against public record. TL;DR: CoderLegion charges $10/month for "premium" access to ~37 active writers on a free open-source script running on $5 shared hosting. They claim no ads (Goo
A few years ago I solved 200 LeetCode problems and still froze on Mediums I hadn't seen. The breakthrough wasn't another hundred problems. It was a different loop. A problem asks for the longest substring with at most K distinct characters. You've solved sliding window before. Maximum sum subarray of size K, done. Longest substring without repeating characters, done. This third one stalls you. Twe