The Hacker's Cache

Jacob Villarreal is an Offensive Security Engineer at PayPal with nearly 6 years in IT, including 3 years in cybersecurity focused on red teaming, social engineering, and adversary simulation. He previously led offensive engagements at Protiviti, executing over 20 red team operations and building custom payloads, phishing infrastructure, and evasion techniques to bypass modern defenses. Jacob holds OSCP and CRTP certifications and has a strong track record of mentoring, speaking at college cyber clubs, and bridging offensive insights with defensive improvements. He's passionate about simulating real-world threats to help organizations strengthen their security posture.