Joined November 2015
- Tweets 237
- Following 29
- Followers 1,344
- Likes 201
7 Photos and videos
Pinned Tweet
9 Apr 2024
Chilkat PRNG Vulnerability Impact on E2EE Messenger ginlo
x41-dsec.de/news/2024/04/09/…
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12 Mar 2025
x41-dsec.de/security/trainin…
What are Tabletop Exercises (TTX) and why they matter to companies.
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10 Mar 2025
X41 performed an audit of Hickory DNS which is an open source Rust based DNS client, server, and resolver. We were sponsored by the great folks at @OSTIFofficial and supported by @ProssimoISRG
Our full report can be downloaded here: x41-dsec.de/security/researc…
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11 Dec 2024
X41 Reviewed Mullvad VPN
x41-dsec.de/news/2024/12/11/…
Many thanks to the @mullvadnet team for the professional and good interaction during this audit!
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X41 D-SEC GmbH retweeted
25 Oct 2024
🙏 The eSIM/eUICC Security Training at @hardwear_io was also a lot of fun for me to hold. I'm happy to have had such a knowledgeable group with a great dynamic!
23 Oct 2024
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X41 D-SEC GmbH retweeted
12 Sep 2024
X41 released two advisories this week, one for Antragsgrün x41-dsec.de/lab/advisories/x… and one for chilkat x41-dsec.de/lab/advisories/x…
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X41 D-SEC GmbH retweeted
24 Jun 2024
OSTIF weathered through an audit of CycloneDDS with @EclipseFdn and @X41Sec. We hope it takes you by storm- ostif.org/cyclndds-audit-com…
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X41 D-SEC GmbH retweeted
2 Jul 2024
📢 Attention all security engineers, researchers and developers!
Let's uncover the secrets of eSIM along with @marver at #hw_ioNL2024; learn about secure deployment practices, potential attack surfaces, and much more!
Link: hardwear.io/netherlands-2024…
#esim #euicc #securityexperts
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21 May 2024
We just published our research on the use of power side channel analysis for fuzzing: x41-dsec.de/news/2024/05/21/…
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14 Feb 2024
X41 reviewed the source code of BIND9 for security issues on behalf of the @ISC . More details and the full report are available here:
x41-dsec.de/news/security/re…
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9 Feb 2024
Markus Vervier (@marver) and Eric Sesterhenn will provide a training NULLCON Berlin 2024. Register now!
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X41 D-SEC GmbH retweeted
25 Jan 2024
Learn from the best! "How to find bugs in large code bases" by Eric Sesterhenn @X41Sec t2.fi/schedule/2024/#speech9
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24 Jan 2024
Can you find vulnerabilities in large software projects such as Git? Join the training by Eric Sesterhenn and @marver at @nullcon Berlin 2024: nullcon.net/berlin-2024/trai…
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X41 D-SEC GmbH retweeted
6 Dec 2023
Want to know how to audit large software projects effectively? Eric Sesterhenn and myself will teach what you need to know @nullcon: nullcon.net/berlin-2024/trai…
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We are thrilled to Welcome back @X41Sec as our Happy Hour Sponsor 🥂
Let’s play some #HackerBingo
Register with Early Bird Discount: nullcon.net/berlin-2024/regi…
#NullconBerlin2024 #cybersecurity #infosecconference
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22 Sep 2023
BIND9 9.19.17 was released, which contains fixes for several issues we reported. Make sure to update: downloads.isc.org/isc/bind9/…
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X41 D-SEC GmbH retweeted
18 Sep 2023
@OpenSearchProj underwent a security audit with us and @X41Sec thanks to funding by @awscloud ! This collaboration was not only a joy to perform but an achievement to report upon. Search the details at ostif.org/opensearch-audit/
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X41 D-SEC GmbH retweeted
16 Aug 2023
Our audit of @EnvoyProxy with @X41Sec is released today! We are incredibly proud of this engagement, and I'd say more about what happened but I can't fit it all in this tweet. So, read our blog and the audit report here ostif.org/envoy-security-aud… for all the details!
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