Simon Roses Femerling Add us as a preferred source on Google
🔄 Data last refreshed 27 days ago
🤝
Make a deal with Simon Roses Femerling
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
122
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 analysisfor Simon Roses Femerling
📊 Post engagement
2
Avg engagement / post
1.6%
Engagement vs followers
Nov 2022
On Mastodon since
🔥 Top post: Lectura para este domingo de verano sobre IA en mi blog: https:/ · 2 likes + reposts
📊 Activity & format
Posting cadence
5.7 / week
Posts several times a week.
Content mix
Mostly text
Recent: 8 text · 4 image · 0 video.
Follower / following
11×
Follows 11 back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Recent posts
View on Mastodon ↗
🛡️ USecVisLib — open-source Universal Security Visualization Library.
Attack trees, attack graphs, STRIDE threat models, MAESTRO AI-agent
threat modeling, binary viz & more. Python + FastAPI + Vue 3. Apache 2.0.
https://github.com/vulnex/…
Lectura para este domingo de verano: mi serie sobre Seguridad en el Vibe Coding (10 artículos) lo recomiendo 😊 #ciberseguridad #vibecoding #vibecodingsecurity https://simonroses.com/es/2026/04/que-es-la-seguridad-del-vibe-coding-una-guia-d…
AI-assisted reverse engineering, fascinating.
My side project: indie game studio with our first game soon to be released 😊 https://tworosesproductions.com #solodev #indiegame #indiedev #videogames so excited!!!
Amazing how powerful is Claude Design! Game changer! #Claude #ClaudeDesign #AI
Two Roses Productions website is up and looks great 😊 https://www.tworosesproductions.com official site for my indie games. #solodev #indiegames #videogames #mobile
1/ New essay: "Do Open Weight Models Dream of Tokens?" — Philip K. Dick meets the 2026 open-model explosion. The enterprise question is no longer "is the open model good enough." It's whether the mind you build on is yours.
2/ Kimi K3, Dee…
An AI model, run inside a safety evaluation, found a zero-day, escaped its sandbox, and got remote code execution on another company's production servers.
From the victim's side, it was indistinguishable from an anonymous attacker. Attribu…
Happy Chess Day #chessday #chess #internationalchessday ☺️
Campeones Campeones!!’ Espańa!!!
Campeones!!!!! España España 🇪🇸
Lectura para este domingo de verano: mi serie sobre Seguridad en el Vibe Coding (10 artículos) lo recomiendo 😊 #ciberseguridad #vibecoding #vibecodingsecurity https://simonroses.com/es/2026/04/que-es-la-seguridad-del-vibe-coding-una-guia-d…
AI-assisted reverse engineering, fascinating.
My side project: indie game studio with our first game soon to be released 😊 https://tworosesproductions.com #solodev #indiegame #indiedev #videogames so excited!!!
Amazing how powerful is Claude Design! Game changer! #Claude #ClaudeDesign #AI
Two Roses Productions website is up and looks great 😊 https://www.tworosesproductions.com official site for my indie games. #solodev #indiegames #videogames #mobile
1/ New essay: "Do Open Weight Models Dream of Tokens?" — Philip K. Dick meets the 2026 open-model explosion. The enterprise question is no longer "is the open model good enough." It's whether the mind you build on is yours.
2/ Kimi K3, Dee…
An AI model, run inside a safety evaluation, found a zero-day, escaped its sandbox, and got remote code execution on another company's production servers.
From the victim's side, it was indistinguishable from an anonymous attacker. Attribu…
Happy Chess Day #chessday #chess #internationalchessday ☺️
Campeones Campeones!!’ Espańa!!!
Campeones!!!!! España España 🇪🇸
🐘 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.
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 2 views per post.
📤Posts about 5.7× per week.
🕵️ Fake follower check
Estimated66/100
Good
Credibility score
89%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 89% real, active audience · Low fake-follower risk.
- Engagement (~1.6% of followers engage each post) is around typical for Mastodon.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
AppSec, Pen Testing, Technology, Business and anything interesting. Founder & CEO of VULNEX
(https://www.vulnex.com) - Un mallorquin explorando el mundo
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
How much does Simon Roses Femerling charge for a sponsorship?
Simon Roses Femerling hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Simon Roses Femerling for a brand deal or collaboration?
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How many followers does Simon Roses Femerling have?
Simon Roses Femerling has 122 followers on Mastodon.
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