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Make a deal with Jann Horn
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
2.6K
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🧰 Free analysis for Jann Horn
Known for
82 views
reposting this animated gif I made a while ago:
https://thejh.net/misc/parks_and_rec_uafs
36 views
n... nice.. job? postal service? I g... guess?
(getting the point requires german skill)
33 views
The Intel SDM's "Examples Illustrating the Memory-Ordering Principles" section:
32 views
today I learned that there is a company that sells "agentless" Linux EDR. you might wonder what it means to do EDR without an agent.
apparently "agentless" means "instead of installing a daemon that runs in the background, one super-uber-privileged server will periodically ssh into all your Linux bo
📊 Post engagement
27
Avg engagement / post
1.1%
Engagement vs followers
Nov 2022
On Mastodon since
🔥 Top post: reposting this animated gif I made a while ago: https://thejh.ne · 82 likes + reposts
📊 Activity & format
Posting cadence
0.07 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 9 image · 1 video.
Follower / following
18×
Follows 141 back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Recent posts
View on Mastodon ↗▶
🔥 Top post
reposting this animated gif I made a while ago:
https://thejh.net/misc/parks_and_rec_uafs
What the heck?
https://www.secretservice.gov/newsroom/releases/2025/09/us-secret-service-dismantles-imminent-telecommunications-threat-new-yorkThis protective intelligence investigation led to the discovery of more than 300 co-located SIM …
today I learned that there is a company that sells "agentless" Linux EDR. you might wonder what it means to do EDR without an agent.
apparently "agentless" means "instead of installing a daemon that runs in the background, one super-uber-p…
The Intel SDM's "Examples Illustrating the Memory-Ordering Principles" section:
n... nice.. job? postal service? I g... guess?
(getting the point requires german skill)
In the german election that happened today, there is an important limit:
Parties that get below 5% of the vote basically don't get any seats in parliament, parties that get at least 5% get in. One party is really close to 5%.
This led to t…
the train did not go to Darmstadt
I remember hearing repeatedly from low-level hardware people that moving data is the thing that really costs power in a computer, so I was wondering what that actually looks like on my Tiger Lake laptop... apparently in practice this mostl…
Photo post
Tassenuntersetzer-Idee für Leute die was mit Verkehr machen:
🐘 Community & instance
Home server
infosec.exchange
A cybersecurity & infosec server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 27 views per post.
📤Posts about 0.1× per week.
🕵️ Fake follower check
Estimated81/100
Excellent
Credibility score
97%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 97% real, active audience · Low fake-follower risk.
- Engagement (~1.1% of followers engage each post) is around typical for Mastodon.
- Organic base — far more followers than accounts it follows.
- Verified account.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
human borrow checker (but logic bugs are best bugs).
works at Google Project Zero.
The density of logic bugs (compared to memory corruption bugs) goes down as the privilege differential between attacker context and target context goes up.
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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18%
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15%
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