2016 Guide to User Data Security : This guide is for the software developer, architect or system administrator who doesn't want to spend a lifetime wading through cryptographic algorith...
The Big List of Naughty Strings : The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.
OWASP : The Open Web Application Security Project (OWASP) is a worldwide not-for-profit charitable organization focused on improving the security of software.
API Security Checklist : Checklist of the most important security countermeasures when designing, testing, and releasing your API.
Running your own identity server allows you to act as an OpenID Provider. You could run one just for yourself, for a community of users or, if you wish, for the general public.