The Computer Security Track


The Computer Security track is intended for students who wish to develop state-of-the-art knowledge of computer and network security technologies. Security considerations pervade personal, corporate, military, governmental, and national infrastructure systems and networks. This track will help you develop leading-edge knowledge in security.


Track Advisor


Prof. Steven M. Bellovin is the advisor for Masters students following this track. E-mail: smb@cs.columbia.edu.

Overall Requirements

Students must complete at least a total of 30 graduate credits.

1. Fulfill the 12-credit core breadth requirement; two core courses COMS W4115 and COMS W4118 are prerequisites for this track.

2. Two required courses (6 credits): COMS W4180 (Network Security) and COMS W4261 (Introduction to Cryptography)

3. Three elective courses (9 credits) selected from the list below; at least two of these courses must be 6000-level CS courses.

4. One general elective graduate CS course (3 credits), at 4000-level or above

5. Students using Special Considerations to credit previous courses in fulfilling core requirements may complete the 30 graduate credits by expanding their electives beyond the base track requirements above.


Core Breadth Requirement:

Students must complete at least four Core courses out of the following six:

COMS W4115: Programming Languages and Translators

COMS W4118: Operating Systems

COMS W4156: Advanced Software Engineering

CSOR W4231: Analysis of Algorithms

COMS W4701: Artificial Intelligence

CSEE W4824: Computer Architecture


Candidates must complete the core courses W4115 and W4118 or equivalent courses, to develop a fundamental understanding of computer systems. Ideally, students should complete these courses prior to pursuing track courses, but they may be taken concurrently with track courses.


Required Track Courses

Candidates are required to complete the following two courses:

COMS W4180: Network Security

COMS W4261: Introduction to Cryptography

Students who have completed equivalent courses with grades of at least 3.0/4.0 scale may apply these courses to satisfy these requirements and devote more credits to pursue elective courses.


Elective Track Courses

Candidates are required to complete 3 courses out of the following list; at least two courses must be 6000 level CS courses.
Note: The list of electives may be updated to reflect changes in the schedule of course offerings.

CSEE W4119: Computer Networks

COMS W4187: Security Arcitecture and Engineering

COMS W4995: VOIP Security

COMS E6998: Advanced Topics in Security

COMS E6998: Advanced Topics in Cryptography

COMS E6185: Intrusion and Anomaly Detection

COMS W6183: Advanced Topics in Network Security

COMS E6118: Operating Systems,II

COMS E6181: Advanced Internet Services

COMS E6901: Projects in Computer Science

ELEN E4703: Wireless Communications

ELEN E6761: Computer Communication Networks

ELEN E6950: Wireless & Mobile Nets, I

ELEN E6951: Wireless & Mobile Nets, II


General Electives

Candidates are required to complete at least one Columbia graduate course, approved by your Advisor.