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IT Infrastructure Security

Undergraduate Certificate

The undergraduate certificate in IT Infrastructure Security covers the design of secure networks, and teaches how to develop risk mitigation plans and perform intrusion detection in IT network environments. This online program seeks to enhance your ability to assess, mitigate, and manage security risks in IT infrastructure.

The U.S. National Security Agency (NSA) and the Committee on National Security Systems (CNSS) recognize this program as meeting the CNSS National Training Standards 4011 and 4013E, which are required for network security professionals who assist federal agencies in protecting the nation's vital information resources. Courseware in this online program meets the topical requirements of the DoD Directive 8570.1M Information Assurance Management (IAM) Technical I category.

Program Courses

The curriculum is reviewed by an advisory council of industry experts for relevancy to today’s marketplace. Course topics include:

  • Local area network (LAN) concepts and technologies
  • Operating systems security principles, practices, and policies
  • IT security attack methods and defense strategies
  • IT security risk management tools, techniques, and practices
  • Computer and network security
  • IT security attacks, technologies, and countermeasures

View all courses.

Program Objectives

In addition to the institutional and degree level learning objectives, graduates of this program are expected to achieve these learning outcomes:

  • Appraise the impact of operating system and network security on information technology management and global ecommerce.
  • Establish the need for a reference model and examine the open systems interconnection (OSI) and the transmission control protocol/internet packet (TCP/IP) reference models.
  • Discuss the technical risks, performance factors, and security issues related to operating system and network security in ecommerce, information technology management, and global ecommerce.
  • Examine the principles that enable viruses, worms, and Trojan horses to propagate and proliferate throughout the system.
  • Differentiate between active and passive intrusion detection, and examine the scope and procedures for implementing border and firewall security.
  • Appraise the process for assessing network and application security and analyze the corresponding risk mitigation strategies and techniques.
  • Assess the configuration, functionality, and risks of filtering and evaluate security systems such as firewalls, border routers, switches, and intrusion detection systems.

Degree at a Glance

Admission Requirements

  • All APU undergraduate programs require a minimum of a high school diploma or equivalent (i.e. GED).
  • You may be asked to complete our College Readiness Assessment before registering for courses. Learn more.
  • If you have previous college experience, you will be asked to submit your transcripts from previous schools where you earned academic credit.
  • Please be prepared to submit a legible copy of your valid government-issued photo ID (civilian students) or government issued JST or CCAF transcript (military students) upon request.
  • There is no fee to complete the APU admission application. View steps to apply.

Need help?

Selecting the right program to meet your educational goals is a key step in ensuring a successful outcome. If you are unsure of which program to choose, or need more information, please contact an APU admissions representative at 877-777-9081 or info@apus.edu.


Undergraduate Tuition Rates 

Per credit hour: $270 | $250 with military grant*

View Tuition and Fees Details  

*To help minimize out-of-pocket costs, APU offers a tuition grant for U.S. active-duty servicemembers, Guard, Reserve, military spouses and dependents, and veterans that caps undergraduate tuition at the military TA limit. See all military-affiliated student benefits.

Paying for School

Because our university is accredited by the Higher Learning Commission (HLC), (the same as the Ohio State University, Univ. of Chicago, and U.S. Air Force Academy, to name a few), we can accept the following forms of financial aid and payments:

Ways to Save

Undergraduate Book Grant

Ebooks are provided at no cost if you are enrolled in undergraduate courses for credit. The undergraduate book grant is estimated to save $250 per academic semester if you are registered as a full-time student.

Transfer Credits

Accelerate your degree completion by taking full advantage of our transfer credit options, including credit for your previous college courses, military service schools, American Council on Education (ACE) and College Level Examination Program (CLEP) tests, and prior learning experiences.  

Employer Contributions

APU has educational partnerships with many employers and associations. Be sure to accurately enter your employer information when you complete our admissions application. Your employer might also offer a tuition reimbursement plan as one of your benefits.


School of Science, Technology, Engineering & Math

This program resides in the School of Science, Technology, Engineering, and Math (STEM) where more than 57 degree and certificate programs are available for students to find their area of interest ranging from space studies to environmental studies to IT and cybersecurity. American Public University is one of the few online colleges where you can work fully online to earn science and math bachelor’s degrees. Two of our bachelor’s programs (Natural Science and BSEE) are set up with full lab kits that are mailed to you to use at home. You won’t sacrifice hands-on experience with our online science programs! In addition, many of our STEM professors work to innovate their classroom, including Danny Welsch who uses video for you to learn from his virtual field trips.

The APU STEM program directors work with industry advisory councils to ensure that our students are prepared for the real world. APU also works with industry certifying bodies to ensure that our courseware meets the requirements of agencies such as the National Security Agency (NSA) Information Assurance Courseware Evaluation (IACE) and the DoD Directive 8570.1M Information Assurance Management (IAM).

At APU, we understand your need for flexibility because most of our students are working adult learners who balance school around work and other life commitments. This is why we offer 8-week or 16-week online courses that start monthly. Through an online virtual classroom, you’ll communicate with students and professors in forum communities as you work to complete your weekly written assignments on your own schedule from anywhere in the world. And with our mobile application, you can even work offline and upload your assignments when you reconnect.

We encourage you to browse the School of Science, Technology, Engineering and Math webpage to learn more about our what’s happening in the school and to find a program that’s right for you