Governments and malicious actors deploy fake cell towers to track targets. A mobile app could detect these by analyzing signal anomalies and known tower databases.
The app would compare nearby tower fingerprints against a crowdsourced database of legitimate towers, alerting when spoofed infrastructure is detected.
Privacy-conscious professionals like journalists would pay for this tool to avoid being tracked during sensitive work.
MVP could simply cross-reference tower locations against known carriers' official data, flagging discrepancies.
Biggest risk: Spoofers may adapt to evade detection methods over time.