Our audit of Envoy with X41 D-SEC GmbH 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… for all the details!

OpenSearchProj underwent a security audit with us and X41 D-SEC GmbH thanks to funding by Amazon Web Services ! This collaboration was not only a joy to perform but an achievement to report upon. Search the details at ostif.org/opensearch-aud…

BIND9 9.19.17 was released, which contains fixes for several issues we reported. Make sure to update: downloads.isc.org/isc/bind9/9.19…

We are thrilled to Welcome back X41 D-SEC GmbH as our Happy Hour Sponsor 🥂 Let’s play some #HackerBingo Register with Early Bird Discount: nullcon.net/berlin-2024/re… #NullconBerlin2024 #cybersecurity #infosecconference

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/tr…

Can you find vulnerabilities in large software projects such as Git? Join the training by Eric Sesterhenn and Markus Vervier at NULLCON Berlin 2024: nullcon.net/berlin-2024/tr…

Learn from the best! "How to find bugs in large code bases" by Eric Sesterhenn X41 D-SEC GmbH t2.fi/schedule/2024/…

Markus Vervier (Markus Vervier) and Eric Sesterhenn will provide a training NULLCON Berlin 2024. Register now!

X41 reviewed the source code of BIND9 for security issues on behalf of the International Science Council . More details and the full report are available here: x41-dsec.de/news/security/…

Advisory X41-2024-001: Weak Chilkat PRNG x41-dsec.de/lab/advisories…

We just published our research on the use of power side channel analysis for fuzzing: x41-dsec.de/news/2024/05/2…

OSTIF weathered through an audit of CycloneDDS with Eclipse Foundation and X41 D-SEC GmbH. We hope it takes you by storm- ostif.org/cyclndds-audit…

📢 Attention all security engineers, researchers and developers! Let's uncover the secrets of eSIM along with Markus Vervier at #hw_ioNL2024; learn about secure deployment practices, potential attack surfaces, and much more! Link: hardwear.io/netherlands-20… #esim #euicc #securityexperts

X41 released two advisories this week, one for Antragsgrün x41-dsec.de/lab/advisories… and one for chilkat x41-dsec.de/lab/advisories…

🙏 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!

X41 Reviewed Mullvad VPN x41-dsec.de/news/2024/12/1… Many thanks to the Mullvad.net team for the professional and good interaction during this audit!

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 OSTIF Official and supported by Prossimo Our full report can be downloaded here: x41-dsec.de/security/resea…

x41-dsec.de/security/train… What are Tabletop Exercises (TTX) and why they matter to companies.