fintech

Fraud Detection in Fintech: Lessons from Document Verification

March 2025·6 min read

For over a year, I worked in document verification and due diligence for a U.S.-based fintech company. My job was to review business funding applications and flag potential fraud before money changed hands.

It was detective work disguised as data entry, and it taught me a lot about how fraud happens and how to catch it.

The Challenge

When businesses apply for funding, they submit financial records, tax documents, legal filings, and more. Some of it is real. Some of it is fabricated. My job was to tell the difference.

Common Red Flags

Over time, I learned to spot patterns:

  • Inconsistencies across documents: Revenue numbers that don't match between tax returns and bank statements
  • Template forgeries: Fake documents created from templates, with telltale signs like mismatched fonts or formatting errors
  • Background mismatches: Business owners whose background checks don't align with their claimed experience
  • Behavioral signals: Rushed submissions, reluctance to provide clarifications, or overly polished documents that seem "too good to be true"

The Role of Technology

We used automated tools to flag suspicious documents, but the final decision was always human. Technology is great at pattern recognition, but fraud evolves constantly. Fraudsters adapt, so verification teams need to stay sharp.

What I Learned

This work reinforced the importance of attention to detail, critical thinking, and cross-referencing data. It also taught me that fraud prevention isn't just about catching bad actors, it's about protecting legitimate businesses from slower funding processes caused by a few bad apples.

Fintech moves fast, but due diligence can't. The key is finding the balance between speed and accuracy.

All ArticlesBy Uestli Guci