Vignesh S.

Vignesh is a seasoned cybersecurity professional and virtual CISO (vCISO) with deep expertise spanning both offensive and defensive security disciplines. Holding industry-recognized certifications including CISSP, LPT (Master), CPENT, and CEH, he brings a red-team mindset to every engagement — identifying vulnerabilities before adversaries can exploit them. With a strong foundation in offensive security, Vignesh has led and executed penetration testing, adversarial simulations, and red team operations across a diverse range of industries including Banking & Financial Services, Casino & Gaming, Retail, Online Games, Education, Insurance, and HR platforms. His cross-sector experience gives him a rare ability to understand industry-specific threat landscapes and tailor assessments accordingly. As a vCISO, he bridges the gap between technical execution and boardroom communication — translating complex risks into actionable strategies for leadership teams. His advisory practice covers incident response, security architecture reviews, compliance frameworks (ISO 27001, DPDP Act), and building security programs from the ground up. At the cutting edge of the field, Vignesh is also an expert in AI security and AI hacking — assessing the security posture of AI/ML systems, identifying model vulnerabilities, prompt injection risks, and adversarial attack surfaces that most traditional security teams overlook. A practitioner at heart, he combines hands-on technical skills with strategic thinking — making him a trusted security partner for organizations navigating today's evolving threat landscape.