I actually have been using claude to go through all my old projects and review from a security perspective.

It flags a heap of things that I never considered, mainly because a lot of my projects were ad-hoc solutions to various issues that were written in a hurry and never intended to be visible to the general internet. But it also has been suggesting architectural and robustness changes that have some value, as a lot of stuff I wrote grew organically and weren't structured particularly well for future growth.