Definition
Crowdsourced threat intelligence aggregates user-submitted fraud reports and behavioral signals into shared detection databases — complementing proprietary ML classifiers.
Key Points
- truecaller ScamFeed: community reports feed scam-checker verdicts
- 12.9B messages/week evaluated; 20.3M flagged fraudulent (company scale claims)
- Trade-off: India TRAI ordered caller-ID apps to share spam data with telecom operators — truecaller criticized one-way exchange