Welcome to Blackbox, a proof-of-concept application developed by 0xspa.de exclusively for bug bounty testing.
Blackbox is an experimental tool created solely for bug bounty proof-of-concept purposes. It demonstrates secure authentication via Google OAuth and performs basic functionality, such as displaying a user’s name after login. This app is not intended for public use or production—it exists only to test and report vulnerabilities within a bug bounty program.
Blackbox uses Google OAuth to authenticate users and access basic profile information (e.g., your name and email address). This data is requested only to simulate a login process for testing purposes. We do not store your data beyond your session, nor do we share it with third parties, except as required by law. This is strictly a bug bounty demonstration. For more details, see our Privacy Policy.
This is a bug bounty proof of concept—functionality is limited to testing scenarios. It is not a fully operational app.