Neon, a call-recording app that went viral this week, has been taken down after it was found to have a serious security flaw, TechCrunch reports. The app lets users earn money from selling their data. When users make calls through the app, their conversations are recorded, stripped of personal details, and sold to third-party AI firms. In exchange, users receive a set fee, up to $0.30 per minute. Neon's website doesn't say much about how it handles user data. However, there's a newly discovered security flaw that allows any user to access the phone numbers, recordings, or transcripts of other users. TechCrunch discovered the flaw while testing the app with a network analysis tool called Burp Suite.Two reporters made calls to each other via Neon, and the Burp Suite tool showed them transcripts and a web link for the audio clip. The link, surprisingly, is publicly accessible, meaning anyone who has it can listen to the audio clip. Additionally, the back-end servers left transcripts ...