r/netsec is a subreddit with 568k members. The most common kinds of discussions are news and solution requests, and the community frequently discusses security, ai, cve, vulnerability, and agent.
/r/netsec is a community-curated aggregator of technical information security content. Our mission is to extract signal from the noise — to provide value to security practitioners, students, researchers, and hackers everywhere.
Popular Themes in r/netsec
#1
News
: "The Hidden CCS2 Attack Surface on EV Chargers"
8 posts
#2
Solution Requests
: "High‑schooler releases LLM‑driven tool that claims 60+ bugs in Linux, V8 and other open‑source projects"
1 post
#3
Advice Requests
: "I've been looking for practical Linux-based digital forensics resources and came across a walkthrough on creating and mounting forensic disk images. It explains the process step by step and could be useful for anyone learning DFIR or forensic imaging. For those working in digital forensics, what too"
1 post
#4
Money Talk
: "GitHub issues $100,000 bounty for critical RCE vulnerability"
1 post
#5
Self-Promotion
: "I open-sourced a personal project called Bomly and would appreciate feedback from netsec/AppSec folks"
1 post
Popular Topics in r/netsec
#1
Security
: "Researcher accidentally gained access to a threat actor-controlled phishing website"
54 posts
#2
Ai
: "PromptSnatcher: AdBlocker stealing Ai Chats - 90k installs"
18 posts
#3
Cve
: "Squidbleed (Cve-2026-47729) - Heartbleed-style vulnerability that leaks internal memory from every version of Squid Proxy, in its default configuration"
14 posts
#4
Vulnerability
: "Squidbleed (CVE-2026-47729) - Heartbleed-style Vulnerability that leaks internal memory from every version of Squid Proxy, in its default configuration"
9 posts
#5
Agent
: "Monitoring the Claude execution layer with OpenTelemetry"
8 posts
#6
Looking For
7 posts
#7
Vulnerabilities
5 posts
#8
Mcp
5 posts
#9
Github
4 posts
#10
Auth
: "27 Years in the Dark: OpenBSD Fixes Ancient Remote Kernel Auth Bypass"
4 posts
Flair Used in r/netsec
#1
Contains AI
: "27 Years in the Dark: OpenBSD Fixes Ancient Remote Kernel Auth Bypass"
9 posts
#2
Pending Moderation
: "Inside an AI coal mine security camera network powered by plaintext passwords"
6 posts
#3
Rejected (Tool Post)
: "Destroying steganographic prompt-injection payloads in images before they reach multimodal LLMs: 99.84% over 108,015 samples with verifiable ground truth"
5 posts
#4
Rejected (Bad Source)
: "Researcher poisons open-weight AI model for under $100"
2 posts
#5
Discussion
: "GitHub issues $100,000 bounty for critical RCE vulnerability"
1 post
#6
Hiring Thread
: "/r/netsec's Q3 2026 Information Security Hiring Thread"
1 post
#7
Pending moderation (Tool post)
: "High‑schooler releases LLM‑driven tool that claims 60+ bugs in Linux, V8 and other open‑source projects"
1 post
Member Growth in r/netsec
Yearly
+37k members(6.9%)
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About
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Last updated: July 25, 2026