r/Infosec

37k members
r/Infosec is a subreddit with 37k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses security, cybersecurity, ai, vulnerabilities, and vulnerability.
Information security (InfoSec) is the practice of protecting sensitive information from unauthorized access, use, disclosure, disruption, modification, or destruction. It encompasses a broad range of measures, both physical and digital, designed to safeguard information and information systems. The core principles of information security are confidentiality, integrity, and availability (the CIA triad).

Popular Themes in r/Infosec

#1
Solution Requests
: "Human rights activist possibly under surveillance: how to build a secure, low-cost setup for video calls with lawyers at the UN?"
17 posts
#2
Advice Requests
: "What is Access Creep?"
11 posts
#3
News
: "CrowdStrike Researchers Identify Hidden Vulnerabilities in AI-Coded Software"
8 posts
#4
Pain & Anger
: "Company is about to make an enormous mistake"
4 posts
#5
Ideas
: "I condensed OWASP, Twelve-Factor, and security fundamentals into a checklist for people building apps with AI who aren't developers"
4 posts
#6
Opportunities
: "Is anyone hiring?"
2 posts

Popular Topics in r/Infosec

#1

Security

: "Is ATO becoming the biggest bottleneck in cyberSecurity?"
100 posts
#2

Cybersecurity

: "14-week hands-on Cybersecurity university course opens to the world fully online"
70 posts
#3

Ai

: "How are you tracking Ai usage inside approved SaaS apps when users don’t even realize it’s happening?"
69 posts
#4

Vulnerabilities

: "CrowdStrike Researchers Identify Hidden Vulnerabilities in AI-Coded Software"
11 posts
#5

Vulnerability

: "Critical (Smithery.ai) MCP Server Vulnerability Exposes 3,000+ Servers and Sensitive API Keys"
10 posts
#6

Threats

: "AI data governance platforms for insider Threats - detection tool or expensive monitoring layer"
10 posts
#7

Data

: "AI Data governance platforms for insider threats - detection tool or expensive monitoring layer"
9 posts
#8

Cloud

: "Is there a "default" Cloud security platform for enterprises?"
8 posts
#9

Phishing

: "Building a Free Library for Phishing & Security Awareness Training — Looking for Feedback!"
7 posts
#10

Access

: "What is Access Creep?"
6 posts

Member Growth in r/Infosec

Yearly
+8k members(27.7%)

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Last updated: June 4, 2026