> For the complete documentation index, see [llms.txt](https://book.timegaptheory.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.timegaptheory.com/master.md).

# OWASP TimeGap Theory Handbook

Learn and teach TOCTOU security issues in web applications

OWASP TimeGap Theory Handbook

![OWASP TimeGap Theory Dino](https://774439876-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fowasp-timegaptheory-handbook%2F-MFm3v4XorDKkhzEmEzD%2F-MFm43_LnIYMMmrM3XRb%2F0.png?generation=1598568036278473\&alt=media)