r/cissp is a subreddit with 97k members. The most common kinds of discussions are advice requests and pain & anger, and the community frequently discusses cissp, exam, struggling, looking, and study, and they frequently recommend/review study resources and study material.
This sub is for those that are pursuing the CISSP® and those that have taken the exam and wish to provide feedback on the study methodology and materials employed. This sub is not supported or managed by ISC2 or its affiliates. This is an unofficial CISSP® Reddit sub.
Information about experience requirements/endorsement/CPEs can be found at https://www.isc2.org/
Popular Themes in r/cissp
#1
Advice Requests
: "2 Questions for those of you who have already taken and passed the exam."
20 posts
#2
Pain & Anger
: "Passed at 100Q today - 1st attempt"
3 posts
#3
Solution Requests
: "Best CISSP study material for 2026?"
1 post
#4
Self-Promotion
: "Looking to sell all the books I used to pass. At least $100 plus shipping for all of it."
1 post
Popular Topics in r/cissp
#1
Cissp
: "Cissp Cheetsheet Wall Poster"
37 posts
#2
Exam
: "I passed my CISSP Exam today!"
27 posts
#3
Struggling
18 posts
#4
Looking
15 posts
#5
Study
12 posts
#6
Cissp Exam
: "I passed my Cissp Exam today!"
12 posts
#7
Passed
: "I Passed my CISSP exam today!"
11 posts
#8
Passed Cissp
: "Just Passed Cissp today!"
7 posts
#9
Prep
: "Passed my exam on first try today, 6 months of Prep, 100 questions, 68min left"
4 posts
#10
Exam Prep
: "CISSP Exam Prep: Single Sign-On (SSO) vs Centralised AAA | Scenario Question (Ep1) in English"
3 posts
Products Discussed in r/cissp
Study Resources
11 reviews
#1
OSG
4.7★ from 3 reviews
#2
Destination Certification
5.0★ from 1 review
#3
Bozon
4.0★ from 1 review
Study Material
6 reviews
#1
Quantum Exam
4.0★ from 1 review
#2
MasterClass
4.0★ from 1 review
#3
LearnZapp
4.0★ from 1 review
Flair Used in r/cissp
#1
Success Story
: "Passed on 2nd Attempt at 100Q (1st attempt - failed at 150Q) - My Honest and Somewhat Critical Review"
21 posts
#2
General Study Questions
: "Refining study approach 3 weeks out"
12 posts
#3
Other/Misc
: "How did CISSP affect your career?"
8 posts
#4
Study Material
: "Paying it Forward: Free Study Books to a Good Home [U.S. Only]"
4 posts
#5
Study Material Questions
: "Teaching materials"
4 posts
#6
Pre-Exam Questions
: "Earned CISSP - My Key Advice"
3 posts
#7
Unsuccess Story
: "Failed today:("
2 posts
#8
Post-Exam Questions
: "About the Master’s Degree waiver"
2 posts
#9
Exam Questions
: "2 Questions for those of you who have already taken and passed the exam."
1 post
Member Growth in r/cissp
Yearly
+11k members(13.0%)
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Last updated: October 15, 2026