r/cybersecurity is a subreddit with 1.5M members. The community frequently discusses security, cyber security, cybersecurity, ai, and career, and they frequently recommend/review edr, siem, and antivirus, and the most common flair used is business security questions & discussion, news - general, career questions & discussion, other, and new vulnerability disclosure.
This subreddit is for discussing cybersecurity topics, research, and emergent threats/findings.
Popular Topics in r/cybersecurity
#1
Security
6 posts
#2
Cyber Security
4 posts
#3
Cybersecurity
2 posts
#4
Ai
2 posts
#5
Career
2 posts
#6
Automation
1 post
#7
Advice
1 post
#8
Openai
1 post
#9
Cloud
1 post
#10
Vulnerability
1 post
Products Discussed in r/cybersecurity
Edr
129 reviews
#1
CrowdStrike
4.3★ from 56 reviews
#2
Microsoft
3.8★ from 21 reviews
#3
SentinelOne
3.7★ from 15 reviews
Siem
121 reviews
#1
Splunk
4.3★ from 12 reviews
#2
Wazuh
4.8★ from 9 reviews
#3
Rapid7
4.1★ from 8 reviews
Antivirus
31 reviews
#1
Microsoft Defender
4.2★ from 5 reviews
#2
CrowdStrike
4.2★ from 5 reviews
#3
SentinelOne
4.3★ from 4 reviews
Flair Used in r/cybersecurity
#1
Business Security Questions & Discussion
: "Is deception technology actually useful for detecting attackers, or is it just another layer of alerts?"
10 posts
#2
News - General
: "Cybersecurity statistics of the week (October 5th - October 11th)"
8 posts
#3
Career Questions & Discussion
: "Does meta security engineer interviews include coding round?"
5 posts
#4
Other
: "Prompt injection in AI data analysts: why a stricter system prompt doesn’t fix it, and what does"
5 posts
#5
New Vulnerability Disclosure
: "curl Patches HTTP/2 Upload Flaw After PoC Demonstrates Client-Side Code Execution"
5 posts
#6
Personal Support & Help!
: "Looking for a RECENT public email dataset with full headers (phishing and legitimate)"
5 posts
#7
Certification / Training Questions
: "CCNA or PenTest?"
4 posts
#8
AI Security
: "AI agents aren’t ‘going rogue.’ Frontier labs are skipping security basics."
3 posts
#9
News - Breaches & Ransoms
: "'123456' password was all a hacker reportedly needed to expose over 8 million people's personal data"
2 posts
#10
FOSS Tool
: "Looking for folks to test open-source CVE feed and prioritisation tool"
2 posts
Member Growth in r/cybersecurity
Yearly
+250k members(19.4%)
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About
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Last updated: October 15, 2026