Probably going to get a viral blog out of this experience, I'm trying to report a 4tb exposed cloud bucket to a company using their responsible disclosure programme... but they replaced the people with a GenAI ticket system that refuses to discuss the case as it thinks exploring open buckets is unethical and against its rules.
The best answer to terrible processes like that is to publicly disclose exactly what's wrong, with repeatable steps.
You tried discretion. Their sloperation prevented it. So, publish.
That WILL get their attention, and everyone elses' as well.
