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r/netsec↗

Technical Information Security Content & Discussion

/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. ‎

576k subscribers278 posts / mo in Sep 2026 (incl. ~1% by known bots)214 authors / mosince 2007

r/netsec has 576k members (+6.9% over the last 12 months). It gets about 278 posts a month from 214 people. Top topics: Windows Security Exploits, Linux Security Vulnerabilities and WiFi Security & Hacks.

Free report

When to post on r/netsec

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Visitors without an account can open 3 subreddit reports a day. The best time to post on r/netsec, removal risk and the rest of the report are one step away.

Size and growth

How r/netsec has grown

r/netsec

Subscriber growth

Subscribers over time

+6.9%in 12 months · +1.2% in 3 months · +0.3% in 1 month
Oct 2026575k
Growing575k subscribers
Data since Mar 2018Live · through Oct 2026
r/netsec

Monthly activity

Posts, comments and authors per month

+10%vs Sep 2025 · −32% last 3 months vs the 3 before
Sep 2026278
BusierPeaked at 593 in Mar 2026
Sep 2026: incl. ~1% by known botsData through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/netsec

Top topics

Share of the subreddit's posts

  1. Windows Security Exploits2.1%
  2. Linux Security Vulnerabilities2.0%
  3. WiFi Security & Hacks1.3%
  4. Malware Discussions1.2%
  5. Ransomware Attacks & Threats0.7%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. Substack
  2. arXiv.org e-Print archive
  3. Medium
  4. Microsoft
  5. Mozilla

The full report

Everything else about r/netsec

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research