r/cissp is a subreddit with 95k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses cissp, struggling, looking, study, and passed, 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
: "Passed - My experience and prep"
7 posts
#2
Solution Requests
: "I built a CISSP prep app with a 4,063-question bank and a real adaptive (CAT) mock exam — 3 lifetime codes for honest feedback"
1 post
#3
Opportunities
: "Cybersecurity leadership opportunities"
1 post
Popular Topics in r/cissp
#1
Cissp
: "Passed Cissp yesterday — 100 questions, ~58 min left on the clock"
20 posts
#2
Struggling
18 posts
#3
Looking
16 posts
#4
Study
12 posts
#5
Passed
: "Passed CISSP yesterday — 100 questions, ~58 min left on the clock"
9 posts
#6
Exam
8 posts
#7
Questions
: "Passed in 150 Questions! 🙌🏾"
5 posts
#8
Pass
: "Passed in 150 Questions! 🙌🏾"
4 posts
#9
Security
: "CyberSecurity leadership opportunities"
3 posts
#10
100
: "Passed CISSP at 100 questions!"
2 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 in 150 Questions! 🙌🏾"
14 posts
#2
Pre-Exam Questions
: "How hard is this exam really?"
3 posts
#3
Post-Exam Questions
: "Failed at 100"
2 posts
#4
General Study Questions
: "I need suggestion"
2 posts
#5
Study Material Questions
: "QuantumExams New mode"
1 post
#6
Study Material
: "It's dangerous to go alone! Take this!"
1 post
#7
Other/Misc
: "Let’s share high-quality webinar resources for CPEs!"
1 post
#8
Exam Questions
: "I built it and passed using it"
1 post
Member Growth in r/cissp
Yearly
+12k members(14.0%)
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About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/cissp, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: July 28, 2026