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Fintech Startup – Cloud Infrastructure Audit

Project Overview

A VC-backed fintech startup using AWS faced scaling security challenges. With multiple dev teams deploying resources, security misconfigurations were becoming common. Our goal was to audit and secure their cloud environment without slowing innovation.

Challenges

  1. S3 buckets left publicly accessible.
  2. IAM roles with excessive permissions.
  3. No logging or monitoring across key cloud services.
  4. Open ports on EC2 instances.
  5. Lack of environment segregation between dev and prod.

Solutions

  1. Audited AWS accounts using AWS Config and Security Hub.
  2. Locked down S3 bucket policies and enabled encryption by default.
  3. Refined IAM roles using least privilege principles.
  4. Deployed GuardDuty and enabled VPC Flow Logs.
  5. Implemented DevSecOps guardrails using Terraform and CI/CD hooks.