Blog

Notes from the evidence desk

Short pieces for people running card issuing control audits for fintech programs — practical, specific, and free of motivational filler.

12 May 2026

Sampling strategies for issuer audit evidence

How to size authorization samples when Monday mornings and weekend reload spikes tell different stories.

3 April 2026

A crosswalk for dual-network stacks that keeps decision codes from becoming a translation project mid-audit.

18 February 2026

A compact list for domestic review cycles that still respects network obligations.

9 January 2026

Why provision, suspend, and delete events must line up before you trust a wallet control claim.