The best alternatives to WhiteHub are Bounties Network, Federacy, and SafeBase. If these 3 options don't work for you, we've listed a few more alternatives below.
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Notion— Get over $6,000 worth of Notion + unlimited AI, for free
The Bounties Network empowers humans to incentivize and self-organize🐝, from freelancing to grassroots social action, and anything in between. Whether it's research📖, design ⚡, music 🎵, content translation🗼, or video production📹, the Bounties Network lets you create projects, collaborate, and get paid for doing great work in any domain.🎉
Federacy is the first bug bounty platform built for startups. Our security researchers pentest your site and let you know if you have any exploitable vulnerabilities. It's free, you only pay for results.
SafeBase is the interactive security portal to share your security posture, automate access to sensitive compliance information, and subscribe to vendor security program updates.
Boss (bounties for open source software) makes creating and earning international bounties for software trivially easy. Just setup your boss account and then send and receive bounties by using GitHub in the way you already do.