Troy Hunt is a Microsoft regional director and MVP, Pluralsight author and internet security specialist. Hunt created Have I Been Pwned, which notifies individuals when their email address turns up in breaches. Hunt discusses how to de-escalate situations where someone is threatening to release data; why inserting a page called security.txts into a website is the best way to send a positive signal to security researchers. He is a frequent speaker at conferences around the world and runs workshops focusing on secure authentication, best password practices and how to avoid data breaches.”]
Source: https://www.cuinfosecurity.com/data-breaches-how-to-respond-to-tipoff-problem-a-14191