@Persistent_Psi

We prove what an attacker can really do to you continuously, and we hand you the detection information you need to improve.

 Belgium
persistent-security.net
Joined January 2023
  • Tweets82
  • Following17
  • Followers137
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benarent
@benarentAug 26
Great fun interviewing @marver of @Persistent_Psi and Rob of @goteleport ; for last nights Offensive vs Defensive in the Age of AI
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Markus Vervier
@marver13 Aug 2025
Full details of CVE-2025-53773 (RCE via Copilot in VSCode, Visual Studio, and other IDEs..) thanks to @gitlab and in particular @joernchen for the collaboration.
Nemesis | Adversarial Exposure Validation@Persistent_Psi13 Aug 2025
🚨 New RCE in Visual Studio & Copilot (CVE-2025-53773)! 0-Click command execution via prompt injection in READMEs/code comments. AI can alter settings & execute commands, risking CI/CD pipelines. Patch now! Full details: persistent-security.net/post…

Part III: CVE-2025-53773 - Visual Studio & Copilot – Wormable Command Execution via Prompt Injection

In the previous articles, we've discussed the theoretical and practical foundations of prompt injection attacks. In this concluding part, we examine a critical real-world vulnerability discovered in...

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Markus Vervier
@marver7 Apr 2025
We've released the first breach and attack simulation MCP - Nemesis MCP server integration is here: linkedin.com/pulse/nemesis-a…
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Markus Vervier
@marver25 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!
Stef@Stef_van_Dop23 Oct 2024
Was a nice training on esim’s at hardwear.io. Thanks @marver @hardwear_io
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hardwear.io@hardwear_io2 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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b33f | 🇺🇦✊
@FuzzySec15 Jun 2024
CVE-2024-30078 Kunlun Lab 👀🔥 msrc.microsoft.com/update-gu…
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antisnatchor@antisnatchor7 May 2024
Read about how our @Giutro and Nikos from @Persistent_Psi bypassed @okta Verify "phishing-resistant" features. persistent-security.net/post… All your sessions are belong to us 🎣

When "Phish-Proof" Gets Hooked

In the digital age, the escalation of phishing attacks has pushed the envelope on the development of more robust security measures. Multi-factor authentication (MFA) has stood out as a frontline...

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Markus Vervier
@marver6 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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Cooper@Ministraitor18 Oct 2023
Embedded Threats: A Deep Dive Into The ESIM World - Markus Vervier youtu.be/Ka70323Y6aQ #hacklu @hack_lu

Hack.lu 2023: Embedded Threats: A Deep Dive Into The ESIM World -...

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

youtube.com
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ATT&CK@MITREattack25 Oct 2023
Starting off today by celebrating 10 years of ATT&CK! The pioneering minds behind the framework are reuniting for an unforgettable journey through the storied history of ATT&CK. Here's to a decade of innovation! #ATTACKcon4 @stromcoffee @likethecoins @jadefh @esheeslee
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X41 D-SEC GmbH@X41Sec7 Jun 2023
x41-dsec.de/news/2023/06/07/… X41 Audited Go TUF Thanks go out to @OSTIFofficial for sponsoring and coordinating this audit.

X41 Audited Go TUF

X41 releases the audit report of Go TUF

x41-dsec.de
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OSTIF Official@OSTIFofficial7 Jun 2023
Check out our most recent audit of go-tuf at this link. It’s not a “tuf” read! ostif.org/go-tuf-on-bugs-ost…
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Markus Vervier
@marver31 May 2023
The recording of my @offensive_con talk about eSIM is online: Embedded Threats: A Deep Dive into the Attack Surface and Security Implications of eSIM Technology youtu.be/5oecn43xsDg?t=1085 #OffensiveCon23
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Markus Vervier
@marver21 May 2023
The 2023 @offensive_con was a blast as usual, amazing people, organization, and vibe! Thank you @yubiguel, @LukasHermannBFS, and their whole team for pulling this off!
offensivecon
@offensive_con20 May 2023
Embedded Threats: A Deep Dive into the Attack Surface and Security Implications of eSIM Technology by @marver now #OffensiveCon23
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GitHub Security@GitHubSecurity24 Mar 2023
At approximately 05:00 UTC on March 24, out of an abundance of caution, we replaced our RSA SSH host key for GitHub.com. Read more here: github.blog/2023-03-23-we-up…
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Insider Paper
@TheInsiderPaper5 Feb 2023
BREAKING: Thousands of computer servers around the world have been targeted by a ransomware hacking attack, Italy's National Cybersecurity Agency said - Reuters
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Reuters
@Reuters5 Feb 2023
Italy sounds alarm on large-scale computer hacking attack reut.rs/3Y7pUDJ
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Shielder@ShielderSec18 Jan 2023
2022 has been a year of great collaborations with amazing teams around the 🌍🌎🌏 which lead to spotting amazing 🐛🦟🐌🐜🐝🐞🦋🦗🪲 and securing companies. Looking forward to team up for 1337 projects even more during 2023.
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