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Cibersecurity

Cybersecurity consists of a set of practices, technologies, and methodologies aimed at protecting systems, networks, and data against unauthorized access, cyberattacks, persistent threats, and security failures. Its central goal is to ensure the confidentiality, integrity, and availability of information, especially in increasingly complex and interconnected digital environments.

About the Area Coordinator

Prof. Sergio Antônio Andrade de Freitas

Full Professor at the University of Brasília (UnB) and researcher in Software Engineering, with extensive experience in cybersecurity and information assurance. His academic trajectory includes supervision of undergraduate and graduate works on intrusion detection, cryptographic protocols, risk analysis, and information security management applied to both public and private organizations. He has coordinated and guided projects involving secure architectures, governance of IT in the public sector, and continuity of critical services. His research integrates cybersecurity with Learning Analytics . His contributions extend to applied research, training of professionals, and innovation in teaching and learning strategies within the domain of Software Engineering and information security.
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Research Team

Researchers

Bachelor’s Thesis

  • Marina Marcia Costa de Souza. Machine Learning Applied to Security Vulnerability Identification . Bachelor of Software Engineering - University of Brasília (Brazil), (2025). Advisor(s): Sergio Freitas . Tags: Machine Learning, Cybersecurity .

Previous Researchers

Master’s degree

  1. Felipe Evangelista dos Santos, Implementation of the integration of the UnB service bus with monitoring tools . Master's Thesis in Applied Computing, University of Brasília (Brazil), 2020 Advisor(s): Sergio Freitas . Tags: Software Architecture, Cybersecurity .
    The adoption of a Service-Oriented Architecture (SOA) in the implementation of services and microservices in distributed system applications facilitates the use of development standards, maintenance, flexibility in service development, and interoperability between services and systems. The Computing Center (CPD) of the University of Brasília (UnB) engages in various software automation processes, ranging from the maintenance of existing systems to the development and deployment of new technological solutions. Continuous monitoring of the performance of services, microservices, and systems becomes crucial. This study, of an exploratory nature, aims to investigate solutions and tools for implementing and managing the monitoring of distributed services and systems at UnB, through systematic mapping. The research was theoretically grounded to develop a model that was applied to the monitoring module of the UnB service bus. Simulations were conducted with the developed solution, allowing the analysis of the integration between the service bus and the proposed monitoring tool.
  2. James Taylor Faria Chaves, Service-Oriented Architecture (SOA), Agile Development Methods and Quality Assurance (QA) - a case study . Master's Thesis in Applied Computing, University of Brasília (Brazil), 2019 Advisor(s): Sergio Freitas . Tags: Software Architecture, Cybersecurity .
    This work introduces the NatVI framework, focusing on the integration between Service-Oriented Architecture (SOA), Agile Development, and Quality Assurance (QA). Developed from a literature review that identified and evaluated the trade-offs between SOA and agile methods, NatVI aims to provide a comprehensive solution for the software development cycle, especially for service-based applications. It includes best practices from SOA and agile principles, emphasizing the importance of QA, essential for software projects in dynamic business environments. A case study in a unit of the Brazilian federal government assessed the application of NatVI, observing improvements in software quality, understanding of agile methods, and client satisfaction with the development process. The study also highlighted limitations, such as the size of the IT team and the number of clients involved, leading to a subjective evaluation through semi-structured interviews. The preliminary results suggest that NatVI has potential, but also highlight the need for further research, paving the way for future studies on emerging technologies, such as containers and DevOps.

Postgraduate Specialization

  1. José Augusto da Fonseca, Standardization of Procedures for the Use of Documents and Information Based on Risk Analysis and Assessment: A Case Study in the Labor Inspection Section of Sergipe . Specialization in Information Security and Communications Management, UnB, 2014 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  2. Wilbert Carpi Silva, Proposal for a Model for Network Infrastructure and Security Incident Handling in APF Computer Networks . Specialization in Information Security and Communications Management, UnB, 2014 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  3. Adevanei de Sant'Anna Barreto, Logical Access Control: A Study on the Case of IT at UnB Gama . Specialization in Information Security and Communications Management, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  4. Jobson Magalhães Dantas, IT Service Continuity Management: Contingency Site . Specialization in IT Governance and Communication for the Public Sector, UnB, 2013 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  5. Leandro Barbosa Martins, Risk Management and IT Governance Applied to the Government Communication Network . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  6. Leandro Barbosa Martins, Risk Management and IT Governance Applied to the Government Communication Network . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  7. Rodrigo César Santos Felisdório, Risk Analysis in Public Sector Information Technology Master Plans . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  8. Fernando Marinho do Nascimento, Contingency Plan for Software Development Tools . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  9. Einstein Oliveira, Cloud Computing: Cost Reduction and Information Security . Specialization in Information Technology Management, UnB, 2011 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  10. Marcianne Ribeiro Antunes Lima, Authentication in Mixed Networks . Specialization in Computer Networks, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  11. Heber Almeida Barbosa, Intrusion Detection in Industrial Automation Networks . Specialization in Computer Networks, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .

Undergraduate Research

  • Bruno Oliveira Silvestre. Implementation of an Agent for Planning Countermeasures in an Attacked Network . Bachelor of Computer Science, UFES, (2002). Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  • Arthur Cypriano Monteiro Costa. Implementation of a Generic Model for Representing Vulnerabilities and Attacks . Bachelor of Computer Science, UFES, (2002). Advisor(s): Sergio Freitas . Tags: Cybersecurity .

Bachelor’s Thesis

  1. Maicon Dal Moro, Simulation of IDS for Industrial Automation Environments . Bachelor of Computer Science, UFES, 2007 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  2. Raphael de Oliveira Santos, Implementation of Protocols for Industrial Automation in an IDS . Bachelor of Computer Science, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  3. Bruno Oliveira Silvestre, Proposal for a Reaction Agent for Computer Network Security . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  4. Arthur Cypriano Monteiro Costa, Proposal for a Model for Structuring Vulnerabilities and Failures . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  5. Luiz Celso Gomes Junior, Network Security: A Distributed Agent for Intrusion Reaction . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  6. Bruno Fardin Fáe, ACEL: A Framework for the Development of Multi-Agent Systems Based on a Cell Organization . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  7. Kassiano Castiglioni Rossmann, A Study on Virtual Private Networks: Implementation and Testing on the UFES Network . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  8. Marcio Pereira Machado, Analysis and Study of Corporate Security Using Firewalls . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  9. Walmir Pereira de Amorim Júnior, Cryptography and Authentication: An Authentication Protocol Using IDEA, RSA, and SHA-1 Algorithms . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  10. Hélder Bergamin Pimentel Dias, A Proposal for an Intrusion Detection Agent . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  11. Rui Sant'Ana Junior, Proposal for a Remote Service Reconfiguration Agent . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  12. Eduardo Venturin Linhalis, Evaluation of Internal Security in a Corporate Network . Bachelor of Computer Science, UFES, 2000 Advisor(s): Sergio Freitas . Tags: Cybersecurity .

Current Projects

Publications and Productions

Publications (30)

  1. CHAVES, J. T. F.,FREITAS, S. A. A., NatVi - A Framework for Agile Software Development, Service-oriented Architecture and Quality Assurance , in 20th International Conference on Computational Science and its Applications , 2020 . DOI: 10.1007/978-3-030-58817-5_33 . Tags: Software Architecture, Cybersecurity .
  2. Felipe Evangelista dos Santos, Implementation of the integration of the UnB service bus with monitoring tools . Master's Thesis in Applied Computing, University of Brasília (Brazil), 2020 Advisor(s): Sergio Freitas . Tags: Software Architecture, Cybersecurity .
    The adoption of a Service-Oriented Architecture (SOA) in the implementation of services and microservices in distributed system applications facilitates the use of development standards, maintenance, flexibility in service development, and interoperability between services and systems. The Computing Center (CPD) of the University of Brasília (UnB) engages in various software automation processes, ranging from the maintenance of existing systems to the development and deployment of new technological solutions. Continuous monitoring of the performance of services, microservices, and systems becomes crucial. This study, of an exploratory nature, aims to investigate solutions and tools for implementing and managing the monitoring of distributed services and systems at UnB, through systematic mapping. The research was theoretically grounded to develop a model that was applied to the monitoring module of the UnB service bus. Simulations were conducted with the developed solution, allowing the analysis of the integration between the service bus and the proposed monitoring tool.
  3. CHAVES, J. T. F.,FREITAS, S. A. A., A Systematic Literature Review for Service-oriented Architecture and Agile Development , in The 19th International Conference on Computational Science and its Applications , 2019 . DOI: 10.1007/978-3-030-24308-1_11 . Tags: Software Architecture, Cybersecurity .
  4. James Taylor Faria Chaves, Service-Oriented Architecture (SOA), Agile Development Methods and Quality Assurance (QA) - a case study . Master's Thesis in Applied Computing, University of Brasília (Brazil), 2019 Advisor(s): Sergio Freitas . Tags: Software Architecture, Cybersecurity .
    This work introduces the NatVI framework, focusing on the integration between Service-Oriented Architecture (SOA), Agile Development, and Quality Assurance (QA). Developed from a literature review that identified and evaluated the trade-offs between SOA and agile methods, NatVI aims to provide a comprehensive solution for the software development cycle, especially for service-based applications. It includes best practices from SOA and agile principles, emphasizing the importance of QA, essential for software projects in dynamic business environments. A case study in a unit of the Brazilian federal government assessed the application of NatVI, observing improvements in software quality, understanding of agile methods, and client satisfaction with the development process. The study also highlighted limitations, such as the size of the IT team and the number of clients involved, leading to a subjective evaluation through semi-structured interviews. The preliminary results suggest that NatVI has potential, but also highlight the need for further research, paving the way for future studies on emerging technologies, such as containers and DevOps.
  5. FREITAS, S. A. A.,CANEDO, EDNA,SANTOS FELISDÓRIO, RODRIGO,LEÃO, HELOISE, Analysis of the Risk Management Process on the Development of the Public Sector Information Technology Master Plan , INFORMATION , 9(248), 2018 . DOI: 10.3390/info9100248 . Tags: Digital Transformation, Cybersecurity .
  6. RIBEIRO, A. S.,CANEDO, E. D.,FREITAS, S. A. A., An Implementation of the OAuth 2.0 for an Enterprise Service Bus , in 18th International Conference on Computational Science and Its Applications , 2018 . DOI: 10.1007/978-3-319-95162-1_32 . Tags: Software Architecture, Cybersecurity .
  7. Barbosa, H. A.,FREITAS, S. A. A., Intrusion Detection Systems in Industrial Automation Networks , in 6th International Congress on Automation, Systems and Instrumentation, 2006, São Paulo , 2006 . Tags: Cybersecurity, Artificial Intelligence .
  8. José Augusto da Fonseca, Standardization of Procedures for the Use of Documents and Information Based on Risk Analysis and Assessment: A Case Study in the Labor Inspection Section of Sergipe . Specialization in Information Security and Communications Management, UnB, 2014 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  9. Wilbert Carpi Silva, Proposal for a Model for Network Infrastructure and Security Incident Handling in APF Computer Networks . Specialization in Information Security and Communications Management, UnB, 2014 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  10. Adevanei de Sant'Anna Barreto, Logical Access Control: A Study on the Case of IT at UnB Gama . Specialization in Information Security and Communications Management, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  11. Jobson Magalhães Dantas, IT Service Continuity Management: Contingency Site . Specialization in IT Governance and Communication for the Public Sector, UnB, 2013 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  12. Leandro Barbosa Martins, Risk Management and IT Governance Applied to the Government Communication Network . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  13. Leandro Barbosa Martins, Risk Management and IT Governance Applied to the Government Communication Network . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  14. Rodrigo César Santos Felisdório, Risk Analysis in Public Sector Information Technology Master Plans . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  15. Fernando Marinho do Nascimento, Contingency Plan for Software Development Tools . Specialization in IT Governance and Communication for the Public Sector, UnB, 2012 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  16. Einstein Oliveira, Cloud Computing: Cost Reduction and Information Security . Specialization in Information Technology Management, UnB, 2011 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  17. Marcianne Ribeiro Antunes Lima, Authentication in Mixed Networks . Specialization in Computer Networks, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  18. Heber Almeida Barbosa, Intrusion Detection in Industrial Automation Networks . Specialization in Computer Networks, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  19. Maicon Dal Moro, Simulation of IDS for Industrial Automation Environments . Bachelor of Computer Science, UFES, 2007 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  20. Raphael de Oliveira Santos, Implementation of Protocols for Industrial Automation in an IDS . Bachelor of Computer Science, UFES, 2006 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  21. Bruno Oliveira Silvestre, Proposal for a Reaction Agent for Computer Network Security . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  22. Arthur Cypriano Monteiro Costa, Proposal for a Model for Structuring Vulnerabilities and Failures . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  23. Luiz Celso Gomes Junior, Network Security: A Distributed Agent for Intrusion Reaction . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  24. Bruno Fardin Fáe, ACEL: A Framework for the Development of Multi-Agent Systems Based on a Cell Organization . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  25. Kassiano Castiglioni Rossmann, A Study on Virtual Private Networks: Implementation and Testing on the UFES Network . Bachelor of Computer Science, UFES, 2003 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  26. Marcio Pereira Machado, Analysis and Study of Corporate Security Using Firewalls . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  27. Walmir Pereira de Amorim Júnior, Cryptography and Authentication: An Authentication Protocol Using IDEA, RSA, and SHA-1 Algorithms . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  28. Hélder Bergamin Pimentel Dias, A Proposal for an Intrusion Detection Agent . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  29. Rui Sant'Ana Junior, Proposal for a Remote Service Reconfiguration Agent . Bachelor of Computer Science, UFES, 2002 Advisor(s): Sergio Freitas . Tags: Cybersecurity .
  30. Eduardo Venturin Linhalis, Evaluation of Internal Security in a Corporate Network . Bachelor of Computer Science, UFES, 2000 Advisor(s): Sergio Freitas . Tags: Cybersecurity .

Contact & Collaboration

 Email for information and contact with the team: sergiofreitas@unb.br.

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