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

# Latest blog posts

FusionAuth Blog | Stay updated with the latest posts on authentication trends and news.

### [Securing your legacy PHP business application with OAuth](/blog/updating-crufty-php-application)

Sometimes applications get written by interns. Sometimes prototypes get put into production. Sometimes crufty old apps, called "legacy" by some, are termed...

[Dan Moore](/blog/author/dan-moore)

October 7, 2020