← All communities
Reddit community

r/cybersecurity

This subreddit is for discussing cybersecurity topics, research, and emergent threats/findings. Founded 2012 · 1.5M members

1.5M members. The best post we have captured here reached 9.5K upvotes, which works out to 6 per 1,000 members.

6peak upvotes per 1,000 members
1.5Mmembers
9.5Kbest post
639most comments
935posts we track

Open r/cybersecurity on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

39% 30% 29%
Text 39% Question 30% Link 29% Image 2% Video 1%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

Business Security Questions & Discussion 140 News - General 133 Career Questions & Discussion 92 Personal Support & Help! 79 Other 62 Certification / Training Questions 43 AI Security 41 Research Article 35 News - Breaches & Ransoms 34 New Vulnerability Disclosure 32

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Recreating uncensored Epstein PDFs from leaked raw base64-encoded data

↑ 9.5K 💬 361 link 2026

“…analysts at the agency were verbally informed that they were not to follow or report on Russian threats” | Cybersecurity and Infrastructure Securit…

↑ 6.1K 💬 414 link 2025

Southwest Airlines unaffected by outage because they're still running Windows 3.1

↑ 4.1K 💬 295 link 2024

Trump’s Defense Secretary Hegseth Orders Cyber Command to ‘Stand Down’ on All Russia Operations

↑ 3.9K 💬 392 link 2025

Anyone Can Push Updates to the DOGE.gov Website

↑ 3.7K 💬 318 link 2025

Discord cuts ties with Peter Thiel–backed verification software after its code was found tied to U.S. surveillance efforts

↑ 3.2K 💬 110 link 2026

So… I all the ATOs for basically all of the government are just… voided? Musk is installing his own, non-cleared, servers on-prem to access govt syst…

↑ 3K 💬 263 link 2025

Bill Gates twitter was hacked😱

↑ 2.9K 💬 315 image 2020

I've Curated a Massive Repo of Free Cybersecurity Resources (for our community)

↑ 2.9K 💬 127 text 2021

US Department of Defense orders its cyber arm to stop operations against Russia

↑ 2.7K 💬 226 link 2025

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/cybersecurity, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

What is r/cybersecurity?
r/cybersecurity describes itself this way: This subreddit is for discussing cybersecurity topics, research, and emergent threats/findings. It was founded in 2012 and has 1.5M members.
How many members does r/cybersecurity have?
r/cybersecurity has about 1.5M members. ViralHunt has tracked 935 of its posts; the biggest reached 9.5K upvotes, which is 6 per 1,000 members.
What is the most viral post on r/cybersecurity?
"Recreating uncensored Epstein PDFs from leaked raw base64-encoded data" reached 9.5K upvotes and 361 comments in 2026, the highest score among the posts we hold from r/cybersecurity.
What subreddits are similar to r/cybersecurity?
Communities of a comparable size we track: r/StarWarsBattlefront, r/alberta, r/massachusetts, r/goodnews, r/AnarchyChess, r/minnesota.
What kind of posts do best on r/cybersecurity?
Of the posts we hold, 39% are text posts and 30% are question posts.
When is the best time to post on r/cybersecurity?
Across 935 timestamped posts we hold, the slots whose posts averaged the highest score are Friday at 20:00 UTC (1.5K avg upvotes), Thursday at 15:00 UTC (1.2K avg upvotes), Friday at 19:00 UTC (1.1K avg upvotes). The busiest day is Tuesday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/cybersecurity?
The 20th-best post we hold from r/cybersecurity has 2.3K upvotes, so that is roughly the bar for the top twenty. We captured 301 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

Start free →

Every figure here is what ViralHunt has captured from r/cybersecurity, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.