The tweet mentions tricks to obfuscate alert, confirm, and prompt dialogs in order to bypass a filter or WAF for XSS attacks. The provided ebook may contain detailed techniques for bypassing these security measures. It is important for organizations to be aware of such bypass techniques and continuously update their security measures to prevent XSS vulnerabilities.
Check out the original tweet here: https://twitter.com/BRuteLogic/status/1861823369110311168