If your 3D Secure (VBV/MCSC) verification fails on PayPal, it’s usually due to card, bank, or fraud system issues — not necessarily a "dead BIN." Here’s how to diagnose and fix it.
1. Common Reasons for 3D Secure Failures
(1) Card Issues
NON-VBV/MCSC BIN: Some BINs lack 3D Secure (common with...