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FWIW, I get several of these emails per week, as the first-reader of security@ emails, and they're almost always scams, sales pitches, or poorly-disguised bounty sniffers. I can't even count the number of times I've been informed that Wordpress.com (.com, not self-hosted) has severe vulnerabilities. And those are the plausible reports. But I always respond professionally and with civility, obviously, because if they have useful information for me, I want to hear it. In defense of the researcher: Their message was better than most, and explained the issue found directly instead of couching it in BS claims. That's good. In criticism of the researcher: They should have linked to their website where they publish reports, and been more plain about their modus operandi from the outset. Let the company know exactly who they're dealing with, and what to expect. Stating it in a sentence is "good", but linking to the evidence is much more credible. I've been on both sides of this relationship. My dumbest experience was with a large bank (HQ in the Netherlands, but operating in several countries including the US and AU, and now acquired by a US bank). I reported a total account compromise vulnerability which would affect 12.5% of their users. I thought my email would be well-received and the (very simple and externally-obvious) issue quickly resolved. Instead I got threats and hostility from some SVP IS nitwit. I told him to go pound sand obviously, and it took them a week to fix the problem. My SO was a customer (which is the only reason I noticed the issue), but not for long. :) |
That is also the reason there is no direct link to my publications on the actual emails, another link to add suspicion of phishing that leads to being ignored. I do provide a link to my index with all my public finds on the signature of the email though.
Also a google search of my handle which I sign and mention on the email would get multiple hits for reputable news websites such as Databreaches.net, TechCrunch, The Register, Publimetro, but doesn't seem companies do much vetting at all before ignoring the alerts.