Dr. Sergio Caltagirone

Professor

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Biography

Sergio Caltagirone is a cybersecurity expert known for foundational contributions to cyber threat intelligence and network defense. He has created cyber organizations for the U.S. National Security Agency and Microsoft and served as an international cyber liaison. Caltagirone has played a crucial role in defining global cybersecurity strategies and is the co-editor of the Journal of Incident Response and Threat Intelligence. He speaks at industry conferences and consults on cyber threat issues for national governments and Fortune 100 companies worldwide. His insights are frequently cited by both national and international news organizations.

Research Interests

Cyber Defense Cyber Operations Cyber Policy Cyber Threat Attribution Cyber Threat Intelligence Cyber Threats Cybersecurity Cyberwar Industrial Control Systems Intelligence Analysis Malware National Intelligence National Security

Awards

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National Security Agency Adjunct Faculty of the Year

Courses

PUBP-8801: Special Topics- Cyber Threat: Directed Threat Hunting Research PUBP-8803: Cyber Threat Hunting PUBP-8803: Cyber Threat Intelligence PUBP-8803: Offensive Cyber Operations

Requirements for Georgia Institute of Technology

Doctorate Program
Requirements
GPA Requirement
Required:3.5
TOEFL
Listening
Required:19
Reading
Required:19
Writing
Required:19
Speaking
Required:19
Total
Required:100
IELTS
Listening
Required:6.5
Reading
Required:6.5
Writing
Required:5.5
Speaking
Required:6.5
Overall
Required:7.5
Prerequisites
Undergraduate degree in computer science or related field
Application Checklist
  • Online application
  • Official transcripts
  • Three letters of recommendation
  • Statement of Purpose
Specialization Notes

Department of Computer Science: GRE scores are optional for Fall 2026.