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Bram Matthys

6 posts

Data of hundreds of thousands of Dutch students sent unencrypted for years

Magister, the most widely used school administration software in The Netherlands, has been sending exam results and personal messages of students unencrypted over the internet for many years.... (Read more)

14 August 2018

The GDPR: Sending personal data by email

Traditional email is insecure: data travels over the internet unencrypted and can be intercepted. So, what does the GDPR say about sending personal data over email? Is it... (Read more)

11 August 2018

Improving IRC security step by step

I've been working at UnrealIRCd since 2001 to make IRC more secure. Below I would like to share the journey that IRC has taken so far with regards... (Read more)

09 September 2017

Buffer overflow issue in UnrealIRCd, despite use of strncat

Today I had to release UnrealIRCd 4.0.11 due to a buffer overflow issue. In this article I give more information on the bug and exploitability. To... (Read more)

10 February 2017

YubiKey and 4096 bit RSA support

Yesterday I received my YubiKey 4. I ordered it so I could safely store my 4096 bit code signing certificate. Turns out this is not possible. Despite YubiKey... (Read more)

29 January 2017
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About

This blog features various cyber security topics. The author, Bram Matthys, has been maintaining and securing Linux servers and networks for the past 15+ years. More recently, the GDPR keeps him busy.

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