Freedom Chat, a messaging app that launched in June, recently addressed two significant security flaws that compromised user privacy. A security researcher, Eric Daigle, discovered that he could easily guess the phone numbers of nearly 2,000 registered users. The app's servers allowed mass guessing of phone numbers without any safeguards. Daigle also found that users’ PIN codes, which are supposed to secure the app, were exposed to anyone in a public channel. This meant that anyone subscribed to the default channel could see others' PINs, putting users at risk if their devices were stolen. After Daigle reported these issues to TechCrunch, Freedom Chat's founder, Tanner Haas, confirmed they had reset all user PINs and rolled out a new app version to fix the vulnerabilities. The company is also working to remove instances where phone numbers were visible and has implemented rate-limiting to prevent mass guessing of phone numbers. In an update to users, Freedom Chat reassured that messages were never at risk, but the exposure of PINs was a serious concern. The situation echoes previous security incidents with other messaging apps, highlighting ongoing challenges in protecting user data in digital communication platforms.