---
title: Research and Insights
description: Cyber Security Research and Insights
---

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# Research and Insights

Cyber Security Research and Insights

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[![](https://avantguard.io/hs-fs/hubfs/Blog/SpectrePi/spectrepi-banner.png?width=800&name=spectrepi-banner.png)](https://avantguard.io/en/blog/die-blinde-stelle-von-802.1x-network-access-control-nac)

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### [The Blind Spot Of 802.1X Network Access Control (NAC)](https://avantguard.io/en/blog/die-blinde-stelle-von-802.1x-network-access-control-nac)

Thanks to SpectrePi, a physical device on the network, an attacker can bypass the 802.1X NAC. This attack vector is of particular interest to organisations that operate devices ...

[Sandro Ackermann](https://avantguard.io/en/blog/author/sandro-ackermann) August 28, 2026 16 min read

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