Valeriy Shevchenko

Valeriy Shevchenko is the CTO & co-founder of Darknotice, an Application Security Engineer, and a member of the Cobalt Core Pentest Team. Since 2016, he has conducted independent security research and is an active bug bounty hunter on HackerOne, where he has reported impactful vulnerabilities across leading global companies, including Amazon, PayPal, Best Buy, Salesforce, N26, etc. In 2024, Valeriy was recognized as a Most Valuable Researcher by the U.S. Department of Defense for his contributions to their vulnerability disclosure program.