Reading the MRZ: How to Verify a Passport Like a Border Officer
Those two lines of angle brackets at the bottom of a passport are a built-in verification system. How the MRZ works, how to check its math, and where fakes get it wrong.
How to Tell if a PDF Has Been Edited: 6 Checks That Actually Work
Six practical checks — from metadata dates to hidden revision history — that reveal whether a PDF was modified after it was created, and what each one can and can't prove.
The Padlock Lies: What HTTPS Actually Proves
The padlock is the most misunderstood symbol on the internet. It certifies the pipe, not the shop — and almost every phishing page you will ever see has one.
The 30-Second Document Check Anyone Can Do
Most documents don't need a forensic exam — but almost all deserve 30 seconds of honest attention. The three-part habit that stops you from ever saying 'it looked fine.'
9 Invoice Fraud Red Flags Every AP Team Should Check
The nine warning signs accounts-payable teams see over and over in fraudulent invoices — and the two-minute checks that catch each one before payment goes out.
Faked Screenshots: The Cheapest Forgery in the Book
Screenshots became the default 'proof' people submit — and they're the easiest forgery there is. Why a picture of a screen should count for so little, and how fakes give themselves away.
PDF Metadata: What It Reveals and How to Read It
Every PDF carries two hidden records about where it came from. Here's how to read the Info dictionary and the XMP packet, what each field means, and the disagreement that exposes tampering.
Where Document Fraud Actually Concentrates, by Industry
'Document fraud' means something different in freight, lending, insurance, and HR. Where the risk concentrates by industry — and why the forgery technique should decide your defense.
What Is Document Forensics? A Plain-English Guide
Document forensics is the discipline of reading the evidence documents carry about themselves. Here's what it examines, how the layers fit together, and what it can and cannot prove.
Purchase Order Fraud: Anatomy of a Fake PO
Invoice fraud targets the buyer; purchase order fraud targets the supplier. An illustrative look at how a fake PO ships goods on credit that will never be paid for — and where it breaks.
How to Spot Fake Pay Stubs: A Guide for Lenders and Landlords
Fake pay stubs cost lenders and landlords real money because they're cheap to make and rarely checked. Here's what generated stubs get wrong, and the checks that catch them in minutes.
Fake Bank Statements: How to Spot Them Before They Cost You
Fake bank statements show up in loan files, rental applications and vendor onboarding. Three layers of checks — visual, mathematical, and forensic — catch nearly all of them.
Medical Billing Fraud: Reading an EOB Like an Investigator
Most medical billing fraud isn't a doctored PDF — it's honest-looking documents describing dishonest care. How to read the EOB, the bill, and the codes together.