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r/cybersecurity rules, stats, and what to post

A source-backed Rankhog guide to r/cybersecurity: public rules, community context, posting fit, and startup-promotion risk before you publish.

Members
1.5M
Community age
Created May 2012, 14 years
To post
No minimum in the rules
To comment
No minimum in the rules
Self-promotion
Allowed with conditionsMust be under 10 percent of your posts and comments, at most once per week per entity, and educational blogs must use Corporate Blog flair.
Links
Allowed with conditionsDo not link to sites gating information and requiring personally identifiable information to proceed.
Promo risk
HighFrom the rules, not from removal counts

Checked October 22, 2026 from the community's public Reddit pages:

Check a post for r/cybersecurity

By Anthony Riera, founder and operator of Rankhog.

Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.

Rule summary

  • Read the FAQ before posting: Please read the [FAQ](https://www.reddit.com/r/cybersecurity/wiki/faq) before posting a question, as it may contain the answer you are looking for. Please also check the collections we have, such as the [Breaking In to Cybersecurity](https://www.reddit.com/r/cybersecurity/wiki/faq/breaking_in) FAQ, which contains a *ton* of useful information for people looking to go into cybersecurity! Due to repetition, posts containing questions which are answered in the FAQ will be removed.
  • Must be relevant to cybersecurity professionals: This is a discussion-oriented sub for people who are, or aspire to be, cybersecurity professionals. The rule of thumb we apply is: if professionals would find it insightful or would enjoy insightful discussions around it, then it's appropriate here. Questions about personal or "home" cybersecurity MUST be posted on r/cybersecurity_help or r/techsupport. Memes, "security fails," homework help, etc. historically don't drive conversation, and will generally be removed.
  • No low effort / poor quality posts: This is a community of cybersecurity professionals - the people reading and replying to threads are actual people taking time out of their day. If you aren't putting effort into writing something, why should anyone put effort into reading it? "AI"/machine generated content, whether linked to or posted directly, is explicitly forbidden across this subreddit and will be removed when discovered. Copywritten content, SEO farming, and other slop are similarly forbidden.
  • Security first / no editorializing: This is the guiding principle for all posts. No editorializing and no political agendas. Posts discussing political issues that affect security are fine, but the post must be geared towards the security implication. Such posts will be heavily monitored and comments may be locked as needed.
  • No advertising: Want to share information or resources? Please review these guidelines: https://www.reddit.com/r/cybersecurity/wiki/advertising_guidelines You would rather build a relationship with the /r/CyberSecurity community than get banned! Educational articles or blogs that contain advertisement to a service are to flair their posts with "Corporate Blog." Soliciting DMs/calls/etc instead of posting answers directly has been used by marketers to try to circumvent this rule, and may also result in a ban.
  • No excessive promotion: All promotion (i.e. self-promotion) on this subreddit must be both: * Under 10% of your posts and comments on this subreddit. * Once per week at most per promoted entity. This rule is enforced to curb spam and unwanted promotional posts by non-community-members. We must always be a community member *first*, and self-interested *second*. A full explanation with examples is available on our [wiki](https://www.reddit.com/r/cybersecurity/wiki/rules/promotion).
  • No personally-identifiable information.: Do not post personally-identifiable information, unless the source has consented to it. Moderation staff can and will request proof. Do not request personally identifiable information, or link to sites gating information/articles/documents/etc. and requiring personally identifiable information to proceed. A "free" sign-up to view content requiring your email is not "free as in freedom."
  • Civility: We're all professionals. Be excellent to each other.
  • Ongoing security incidents are to be collated into one thread: During ongoing major incidents - hacks, vulnerabilities, etc - in order to collate all discussion into one area, threads will be locked or removed and discussion redirected to one or few megathreads.

Works well

  • A detailed technical deep dive into a recent vulnerability or zero day threat.
  • A research summary discussing the security implications of a new technology.
  • An educational article that explains a complex cybersecurity concept to professionals.
  • A discussion starter about how professionals are handling a current emergent threat.

Avoid

  • Posting questions that are answered in the FAQ before posting.
  • Sharing content that is machine generated or uses SEO farming.
  • Soliciting direct messages or calls instead of posting answers directly.
  • Posting personal or home security questions here.
  • Engaging in low effort posts that do not put effort into writing.

What r/cybersecurity Is For

This subreddit is for discussing cybersecurity topics, research, and emergent threats and findings. It is a discussion oriented sub for people who are, or aspire to be, cybersecurity professionals. The goal is to have insightful discussions around these topics.

Rules That Matter Before Posting

The rules that decide if a marketing adjacent post survives are “Must be relevant to cybersecurity professionals”, “No low effort / poor quality posts”, “No advertising”, “No excessive promotion”, “No personally-identifiable information”, and “Civility”.

What To Post

A good post here is something that is highly insightful and relevant to professionals. This could be a detailed research finding on a new threat or an educational article that discusses a complex cybersecurity topic. If you are sharing a resource, it must be educational and follow all the advertising guidelines.

What To Avoid

You must avoid posting memes, security fails, or homework help because those things generally do not drive conversation. You must also avoid any editorializing or political agendas unless the post is strictly geared towards the security implication. Finally, you must never post personally-identifiable information.

Common questions about r/cybersecurity

Can I post about my personal home network security?

Questions about personal or home cybersecurity must be posted on r/cybersecurity_help or r/techsupport.

What are the limits on promoting my business in this community?

All promotion must be under 10 percent of your posts and comments and at most once per week per promoted entity.

Is it okay to use AI tools to help write my post?

AI generated content, whether linked to or posted directly, is explicitly forbidden across this subreddit.

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