> For the complete documentation index, see [llms.txt](https://fusionauth.io/docs/llms.txt)

# Security posts

FusionAuth Blog | New Category

[!Browser-Based OAuth Client: The architecture you shouldn't be using](https://fusionauth.io/blog/browser-based-oauth-client-security-architecture.md)

### [Browser-Based OAuth Client: The architecture you shouldn't be using](https://fusionauth.io/blog/browser-based-oauth-client-security-architecture.md)

Of all possible browser-based OAuth architectures, the Browser-Based OAuth Client (BBOC) pattern is the least secure. Despite this, BBOC remains the most...

[Nathan Contino](https://fusionauth.io/blog/author/nathan-contino.md)

[Kim Maida](https://fusionauth.io/blog/author/kim-maida.md)

June 3, 2026