Guardians of the Gateway: Battling SMS Fraud in Real Time
summary
Real-time system that detects and blocks SMS pumping at low latency by combining streaming features, ML models and rule-based thresholds, ingesting tens of billions of events per day and running at 60–70k RPS; architecture uses Kafka, Elasticsearch, DynamoDB and Redis sorted sets for sliding-window counts and idempotency; adds progressive trust for new customers and geo-permissions and rate limits as controls; vendor reports industry figures of 2.6 trillion A2P messages by 2025 with 5–40% fraud, and cites 569M fraudulent attempts (to Oct 2024) and ~$86M customer impact.
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chapters (13)
- 0:00Introduction
- 1:46What is SMS fraud
- 3:55Artificially inflated traffic
- 6:01Fraud detection signals
- 9:17High vs low volume fraud
- 10:20Developer options today
- 13:27CPASS provider role
- 15:10Progressive trust model
- 17:44Latency and fraud detection
- 19:31Real-time fraud architecture
- 22:25Volumetric fraud solutions
- 24:16Battling real-time fraud
- 27:47Business impact and Q&A
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