r/opsec is a subreddit with 82k members. The community frequently discusses security, opsec, privacy, threat, and anonymity, and the most common flair used is beginner question, countermeasures, vulnerabilities, threats, and advanced question.
OPSEC is the process and practice of Operations Security. Although it has roots in the military, OPSEC can be applied to any venture requiring secrecy and survival, from business security to personal safety. OPSEC is a mindset of critical thinking and safe habits. Read the sidebar below for more information!
Popular Topics in r/opsec
#1
Security
65 posts
#2
Opsec
63 posts
#3
Privacy
44 posts
#4
Threat
10 posts
#5
Anonymity
9 posts
#6
Anonymous
8 posts
#7
Tor
7 posts
#8
Phone
7 posts
#9
Vpn
7 posts
#10
Human Rights
7 posts
Flair Used in r/opsec
#1
Beginner question
: "How would you build a highly private, secure digital workspace from scratch with ~$300?"
24 posts
#2
Countermeasures
: "How to Opt-Out of Airlines Selling Your Travel Data to the Government"
6 posts
#3
Vulnerabilities
: "Secret Service visits man after instagram ~DM"
5 posts
#4
Threats
: "A New Jersey school is exploring a “new” way to enforce the cell phone ban, and it’s a horrible violation of privacy"
3 posts
#5
Advanced question
: "Threat model review: reducing exposure to state mass surveillance when ISP-level DNS interception, state CAs, and DPI are play (Russia)"
3 posts
#6
How's my OPSEC?
: "The Nile: a FOSS root-based plausible-deniability vault for Android"
2 posts
#7
Risk
: "Adding security layers for someone in possible danger"
1 post
#8
Solved
: "Steganography Tool - Hide Data in Images & Audio"
1 post
Member Growth in r/opsec
Yearly
+22k members(35.5%)
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Last updated: September 30, 2026