Sebastian L.M Email & Phone Number

Cyprus

Cyber Defence and Attack Prevention Department

Technical Lead of security operations- Monitoring and Response- Infrastructure Security - (ZTNA) Zero Trust Network Access/Micro-segmentation- Cyber Intelligence - Automatic Breach and Attack Simulation- Security as a service (SaaS) - Next-Generation Firewalls, Managed Detection and Response MDR, Email SecurityFocusing on delivering top-notch security solutions, and decisive response to any security challenges.Operating security monitoring, infrastructure protection, cloud security (AWS), threat intelligence, and penetration tests by employing cutting-edge security tools and strategies to identify and neutralize threats.

- Respond to cyber attacks and act as Threat Hunter/Threat researcher.- Scoping Security Operation (SOC) Assessments to identify protection gaps across security systems (SIEM, EDR, Firewalls, WAFs) and provide incident response consulting.- Troubleshoot SOC infrastructure AWS SOC as a service infrastructure model. (Architecture and configuration of AWS VPC, Gateways, IAM, WAF, CDN, SNI Routing).- Maintain cloud security systems such as WAF, Bot-Mitigation/Deception, Web Anti-Defacement, Next-Gen Firewalls, and DDoS protection. (FortiGate, FortiWEB, CloudFlare, Authenticator). - Performing cloud and web application attacks, initial access operations.

- Architect, design, implement, and maintain, information system security controls and countermeasures including software, vulnerability assessments, firewalls, intrusion detection/prevention IDPS, and implement data encryption standards including monitoring security tools alerts for unusual or suspicious activity.- Implement the web defence security solution including deployment of web application firewalls (WAF) across all web applications, CDN/DDoS protection, and hardening web applications by executing OWASP TOP 10 security checks.- Evaluation of operating systems security and malware infection including, advanced Windows logging, privilege escalation attacks, hunt end-points for attacking tools, and setup active directory hardening policies to prevent attacks such as lateral movement, privilege escalation, and malware execution.- Implementation of Linux security (SELinux, RBAC, permission, API security, Kernel hardening- Apparmor)- Performed penetration tests across clients and provided high-level reports.- Technical expertise in web servers and databases including Apache, Tomcat, NGINX, RabbitMQ, and MYSQL.

Terrorism And International Security (Cyber Counter-Terrorism Project)

Ap Dark Web - Cyber Intelligence Operations (Pgcert)

Cyber Warfare And Terrorism, Security Incident Response & Cybersecurity Management