Flávio Queiroz, MSc
Cybersecurity Leader
CISSP, CISM, CRISC, CCISO, GISP, GDSA,
GSOC, GDAT, GCIH, GCTI, GCISP, GRTP,
GPEN, GCPN, CTIA, CTMP, eCTHP, eCMAP
Lisbon, Portugal
Integrating cybersecurity into business strategy through tangible initiatives that mitigate risks, enhance resilience, and preserve organizational value.
Welcome to my personal website!
Professional Profile
Veteran Navy Captain (NATO OF-5) and cybersecurity specialist with international experience, bringing over 13 years of hands-on operational execution and strategic leadership in the Brazilian Navy’s cyber defense sector. My background combines expertise in information security, risk management, crisis response, and threat intelligence across information technology (IT) and operational technology (OT) environments.
Career Overview
With over 30 years of service in the public sector and a career built on aligning security, innovation, and corporate value generation, I have led initiatives including the implementation and assessment of security controls, the development of cybersecurity policies, threat analysis, incident response, and executive decision-making support. These efforts have strengthened the resilience of over 400 military organizations, supporting more than 70,000 users across nine countries. I’ve also supported executive leadership through technical audits and risk evaluations for critical assets, including those tied to the Brazilian Navy’s Nuclear Program.
Education
I hold an MSc in Computing and graduate certificates in cyber warfare and in cyber policy and strategy. Additionally, I have an MBA in Cybersecurity and advanced studies in cyber defense, crisis management in cyberspace, maritime cybersecurity, and international law of cyber operations. I also hold multiple technical and managerial certifications.
Ministry of Defense
I contributed to the revising the Military Cyber Defense Doctrine and supported the implementation of the Military Cyber Defense System (SMDC). As a subject matter expert, I played a key role in developing the SMDC Operational Standards (NOSDCiber) and helped define strategic guidelines for operations in cyber conflict scenarios.
Special Missions
I coordinated the Ministry of Defense's Computer Security Incident Response Team (CSIRT) during the Rio 2016 Olympic Games, working under the Brazilian Army Cyber Defense Command (CDCiber), ensuring cyber readiness and incident coordination for one of the world’s largest international events. I also served as a cyber intelligence analyst in the Middle East, supporting operations for the Combined Joint Task Force. In recognition of my contributions, I was awarded the Joint Service Achievement Medal (JSAM) by the U.S. Department of Defense (DoD).
Community Contributions
I contributed to the cybersecurity community as an EC-Council Certified Instructor for the CTIA certification, a guest instructor at the Brazilian Army’s National Cyber Defense School (ENaDCiber), and a guest lecturer in a Cybersecurity MBA Program. I have maintained a strong international presence on LinkedIn since 2011, sharing threat intelligence insights and professional analysis with a network of over 25,000 followers.
CORE COMPETENCIES
Governance, Risk, and
Compliance (GRC)
Cybersecurity Strategy &
Information Security Policy
Strategic Foresight and
Scenario Planning
Planning of Blue Team &
Red Team Exercises
Threat Intelligence
Management
Cyber Crisis
Management
Executive Reports,
Briefings and Alerts
Tabletop Exercises &
Crisis Simulations
EXPERIENCE
Cyber Intelligence and Counterintelligence Director
2022 - 2024
Brasília, Brazil
Cyber Intelligence Manager
2019 - 2022
Brasília, Brazil
Cyber Threat Intelligence Director
2019 - 2019
Rio de Janeiro, Brazil
Incident Response Manager
2018 - 2019
Rio de Janeiro, Brazil
Cyber Threat Intelligence Manager
2015 - 2018
Rio de Janeiro, Brazil
Cyber Defense Manager
2013 - 2014
Rio de Janeiro, Brazil
Department of Cyber Intelligence and Counterintelligence
-
Provided multidisciplinary defensive/offensive leadership.
-
Conducted cyber crisis response in IT/OT environments.
-
Assessed and mitigated organizational risks.
-
Developed forecasts based on complex cyber scenarios.
-
Coordinated real-time Blue Team/Red Team exercises.
-
Conducted threat analysis considering geopolitical trends.
-
Produced reports and executive briefings.
Cyber Intelligence Division
-
Led cyber intelligence analysts with technical oversight.
-
Executed global cyber threat analysis.
-
Provided incident response support.
-
Monitored offensive groups and campaigns.
-
Developed risk indicators and scenarios.
-
Produced alerts and technical insights.
Cyber Threat Intelligence Agency
-
Led threat intelligence analysts with technical oversight.
-
Developed long- and short-term strategies.
-
Interpreted technical content to support executive decisions.
-
Provided support for incident investigations.
-
Established Threat Intelligence programs.
-
Analyzed offensive techniques, tactics, and procedures.
Computer Security Incident Response Team (CSIRT)
-
Led incident handling and response with technical oversight.
-
Developed workflows and playbooks.
-
Established metrics and indicators for response effectiveness.
-
Performed root cause analysis of incidents.
-
Supported business continuity and recovery.
Cyber Threat Intelligence Division
-
Executed SIEM-based threat hunts and indicator analysis.
-
Assisted in vulnerability identification and remediation efforts.
-
Produced technical alerts for SOC teams.
-
Collected intelligence by monitoring the Dark Web.
-
Provided offensive intelligence support to the Red Team.
Cyber Defense Division
-
Governance, Risk, and Compliance Management (GRC).
-
Conducted IT audits.
-
Conducted assessments of physical/logical security controls.
-
Developed information security standards and policies.
-
Implemented user awareness programs and training.
MISSIONS
Cyber Defense Specialist Advisor
Mar 2024 - Sep 2024
Brasília, Brazil
Cyber Intelligence
Analyst
Aug 2021 - Mar 2022
Amman, Jordan
Computer Security Incident Response Team Coordinator
Jun 2016 - Sep 2016
Brasília, Brazil
.png){kind=logo}
Ministry of Defense
Joint Chiefs of Staff of the Armed Forces
Developed Operational Standards (NOSDCiber) for the Military Cyber Defense System to standardize cyber procedures within the National Defense context.
Combined Joint Task Force, US Central Command
Conducted identification of cyber threat actors, attack infrastructure mapping, and monitoring of OSINT, Dark Web, and Deep Web sources to support counterterrorism efforts.
Ministry of Defense, Rio 2016 Olympic Games
Brazilian Army Cyber Defense Command (CDCiber)
Led coordination of the incident response team during the Olympic Games, overseeing the investigation of incidents within the military scope of national critical infrastructures.
EDUCATION
Higher School of War (ESG)
Rio de Janeiro, 2023
Ibmec
Brasilia, 2023
Universidad de las Fuerzas Armadas (ESPE)
Equador (remote), 2022
Instituto de Defesa Nacional
Portugal (remote), 2021
Electronic Warfare Training Center (CIGE)
Brasilia, 2017
Universidade Federal Fluminense
(UFF)
Rio de Janeiro, 2013
Naval Academy (EN)
Rio de Janeiro, 2000
Graduate Certificate in Cyber Policy & Strategy
Specialized studies in consulting, strategic planning, and leadership at the political and strategic levels of cyberspace governance and operations.
MBA in Cybersecurity
Development of modern business management skills with a strong focus on cybersecurity and information security practices.
Cyber Defense Course
Specialized training in the planning and execution of military cyber defense operations, emphasizing the integration of cyberspace into joint force operations and national defense missions.
Cybersecurity and Cyberspace Crisis Management Course
Advanced training in cyber defense strategy, incident response, and strategic decision-making under pressure, with a focus on national security and the management of complex crises in the cyber domain.
Graduate Certificate in Cyber Warfare
Specialized training in the use of defensive and offensive cyber tactics, techniques, and procedures (TTPs) within the context of military operations in cyberspace.
MSc in Computing
Research on network security, focusing on secure communications and intrusion detection.
BSc in Naval Science
Operational command, naval warfare and military leadership in high-risk environments.
CERTIFICATIONS
Security Operation
Chief Information
Security Officer
Risk
Management
Information Security
Management
Cyber Threat Intelligence
Threat Hunting
Malware Analysis
Offensive Security
Industrial Cybersecurity
ISO/IEC 27001
Senior Lead Implementer
Lead Operational
Resilience Manager
TEACHING & INSTRUCTION
Author and Former Technical Lead of the Cyber Intelligence Internship at the Brazilian Navy Intelligence School
EC-Council Certified Instructor for CTIA Certification Preparation
Guest Lecturer in a Cybersecurity MBA Program
Guest Instructor at
National Cyber Defense School (ENaDCiber)
MEMBERSHIPS
