[charltones]

There is just no upside to this kind of response. Surely for any tech company that has reached a certain size, the only workable approach is to recruit an appropriately sized security team and politely welcome and respond to each and every security report received, triage them as quickly as possible and fix the ones that are found to be real vulnerabilities. Even if you aren't happy with the motives or the methods they employ, they are potentially finding flaws in your products for you.