Rules, Models, and the Tradeoffs Between Them
The more I learn about fraud, the more I realize how much of banking is shaped by the people trying to exploit it. Fraud isn't a side problem. It influences how accounts are opened, how transactions are monitored, how clients are verified, and how much friction everyone tolerates along the way.
A First Look at Identity in Banking
I've been turning over how many banking processes start the same way. Someone needs to prove they are who they say they are. Account opening, wire transfers, loan applications, address changes. Every single one begins with identity.
Status Codes, Authentication, and Design Patterns
In the previous posts, I covered what REST is and how resources and methods work. Now let's look at what makes an API robust: status codes that communicate clearly, security that protects your data, and design patterns that keep things maintainable. These are the things I wish I'd understood better when I started building APIs.
How Two Keys Changed Everything
How can two people who've never met exchange secret information over an open network? It's a question that sounds impossible until you see the answer: public-key cryptography.
