We looked into a platform like HackerOne but were quoted 60-70K per year to run a bug bounty program. Since we're new and our profits are still small, our budget is closer to 10% of that.
What are our options for a security audit? Is this even something worth pursuing when we're still deciding whether we have product-market fit?
I know a startup listed there and they get regularly approached by security researchers. Some only run generic test suites, e.g. port scans, if signing up with unicode usernames causes errors, cross-side scripting, but it will still be valuable. And a cross-side scripting bug has bounties of 100 USD or less.
Via a recent Show HN submission I got a security scan by https://www.cybersenshi.com/ which I think was comprehensive.
I think it's better to make a 1 page to put details scope, rewards, etc. Here is good example https://bugbounty.linecorp.com/en/
And bounty platforms aren't a security audit. If you want an audit, buy an audit by someone who gets access to your code and can review your internal setup.