NullifiedSec

NullifiedSec (Mashrur Rahman Rawnok) is a security specialist and leader currently working as a Red Team Lead. His main objective is strengthening organizational defenses by performing full-scale, realistic attacks that simulate real-world threat actors.

He has 7+ years of professional experience in offensive security. He focuses on planning and carrying out complex testing, simulating threats, and developing custom methods to breach systems. His expertise covers a wide range of security areas, including securing cloud environments (AWS/Azure), deep penetration testing of networks, and testing people-based defenses.

His most significant work involves protecting essential, high-value systems. This means he directs continuous, high-fidelity attack simulations designed to prove that security measures work against skilled attackers. He also builds internal tools for testing and finding weaknesses. His process ensures that defenses are continuously verified under adversarial conditions.

As a leader, Mashrur guides and develops skilled security professionals. He promotes high technical standards and effectively translates technical weaknesses and risks into clear, non-technical advice for company executives. He aims for impactful results in every task, creating security programs that are strong and prepared for future threats.

Mashrur is available to connect with other security professionals and leaders to discuss security strategy.