ATSEC Information Security Corp interview questions
Updated 28 Oct 2025
based on 12 ratings
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Glassdoor users rated their interview experience at ATSEC Information Security Corp as 100% positive with a difficulty rating score of 2 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Cryptography Expert and rated their interviews as the hardest, whereas interviews for Cryptography Expert and roles were rated as the easiest.
I applied online. I interviewed at ATSEC Information Security Corp (Austin, TX) in Oct 2024
Interview
The interview process focuses heavily on technical knowledge. Expect multiple rounds testing deep understanding of cybersecurity fundamentals, common vulnerabilities, network protocols, and encryption methods.
Reached out via LinkedIn, gave an online assessment, and then the interview.
FIPS standards understanding, network security. They will also ask some questions regarding the security assessment. Coding is not included in my case, but they expect to see a candidate have a good sense of the lifecycle of security systems
Interview questions [1]
Question 1
What does the FIPS-2 193 distinct from the previous edition?
distinctions between public key cryptography and secret key cryptography.
Imagine you are auditing a bank for PCI DSS, what do you do
I applied online. The process took 2 weeks. I interviewed at ATSEC Information Security Corp (Austin, TX)
Interview
An online multiple choice assessment covering network protocols and cryptographic concepts. Then an onsite interview with a technical and behavioral portion assessing your knowledge of networking protocols and cryptographic concepts. Finally I had to give a presentation on a topic of my choice, followed by an extensive questioning session on cryptography in general, reviewing cryptographic algorithms in python and C, and various other topics.
Interview questions [1]
Question 1
Given an RSA cryptosystem, what is it called when the owner of a private key calculates m^d mod N