I found a DoS vulnerability in Coinbase several months ago on Hacker One. It took me literally 30 minutes to find. First time I did this in my life. I could craft a message cheaply which, when sent as the HTTP payload to a specific endpoint, would cause the server to hang for a full 30 or so seconds before getting a response. I could have easily scaled up that attack, cheaply...

I filed a report, they marked it as 'informative' and thanked me, recommended I keep looking for more vulnerabilities, but no payment at all; they said I had to be able to demonstrate major disruption of service... Which I presume is illegal. I literally showed them all the ingredients of the attack, the exact curl commands, payloads, the exact response delay could be easily be verified; you could see the server response slowing down proportional to the degree of nesting in the payload. I could execute it without authentication too; so it was essentially certain that the attack could be scaled but they made it impossible to get a reward.

The hardest part was writing the report which took several hours.

So yeah, 30 minutes of looking for a vulnerability, no prior experience in security research, first project I looked into on Hacker One, ever... A company in crypto sector which is a major target of hackers and takes security relatively seriously.

Imagine how insecure most software is! Imagine how bad most vibe-coded software is especially! Companies might as well run their servers directly inside Kim Jong Un's data center in North Korea.

North Korean hackers probably have a dashboard which shows more detailed and accurate platform analytics than what the founders of the company can see.