Nithin Kumar M

• Perform penetration testing and vulnerability assessments across cloud, network, web, and AI environments to identify security gaps before incidents
• Harden environments and reduce attack surface by applying CIS, CISA, DISA STIG, and NCSC benchmarks
• Automate security checks, monitoring, and remediation across Windows and macOS using PowerShell and Bash
• Conduct user access reviews to minimize insider risk and enforce least privilege
• Lead security projects end-to-end, from scoping and planning through execution and reporting
• Collaborate with cross-functional teams to integrate security into day-to-day workflows
• Lead cybersecurity awareness training on phishing, social engineering, and threat recognition

• Created security playbooks aligned with NIST 800-171 r2 using CIS and CISA benchmarks
• Hardened M365 tenant configurations by researching and applying Microsoft security best practices
• Configured and secured Windows and macOS endpoints via Microsoft Intune

Lab notes and detailed technical write-ups covering Active Directory attacks, cloud security, and CTF walkthroughs.

Self-hosted attack/defense lab for testing real attack paths, exploiting misconfigurations, and validating remediation - covering AD, AWS, and web app scenarios.

Actively help security professionals on Reddit and Discord by solving problems and sharing detailed walkthroughs and methodology breakdowns.