A serverless, real-time fraud detection system built on AWS that ingests login activity, detects suspicious IP addresses, and automatically triggers alerts. The system stores fraud events for historical analysis and provides visualization through Athena or QuickSight, ensuring scalable, cost-effective, and proactive security monitoring.

Overview

2025,
Usecase
  • In an increasingly digital world, securing user interactions is paramount. Our Real-Time Fraud Detection System is an advanced, serverless solution designed to provide a robust defense against fraudulent activities, specifically targeting suspicious login behaviors. Built on the secure and scalable foundation of AWS, this system continuously monitors user activity, instantly identifies threats, and takes proactive steps to mitigate risk. It's more than just a security tool; it's a comprehensive platform for intelligent threat management that evolves with your business.

Process

Our system operates as a seamless, automated pipeline, ensuring that every user interaction is scrutinized for potential threats without any manual intervention.

  • Ingestion: Real-time user activity data, such as login attempts, is captured and streamed into Amazon Kinesis Data Streams. This ensures that no event is missed, providing a complete picture of user behavior as it happens.

  • Detection: The incoming data is immediately processed by an AWS Lambda function. This serverless compute service applies sophisticated fraud detection logic, including rules and anomaly checks, to flag any suspicious behavior.

  • Action & Notification: When a potential threat is identified, the system acts instantly. Fraud alerts are stored in Amazon DynamoDB for fast access and record- keeping, while simultaneous notifications are sent via Amazon SNS (Simple Notification Service) to administrators, allowing for immediate response.

  • Archiving & Analysis: For long-term insights and historical analysis, all fraud events are archived in Amazon S3. This data is then cataloged by AWS Glue, making it ready for querying with Amazon Athena and visualization through dynamic dashboards in Amazon QuickSight.

Outcome

The ultimate result is a fully automated, hands-off security solution that provides peace of mind. By leveraging this system, your applications are fortified against suspicious login activities in real time. You gain the ability to immediately identify potential fraud, receive instant alerts, and maintain a historical record for in-depth analysis of fraud patterns. This proactive approach significantly reduces risk, strengthens your security posture, and allows for intelligent threat management without the overhead of maintaining complex infrastructure. The system's scalability and cost-effectiveness ensure that your security solution grows with your needs, always providing a strong line of defense.

Mothilal

Data Engineer

2025,

Case-Study