Onze blog

Physical Security
Mark de Groot

Mifare CTF challenge write up

During HiTB CTF one of the challenges were to decode a Mifare clasic handshake and find the encrypted message based on a communication trace. Fair

Read More »
Uncategorized
Mark de Groot

Securing unused domains

A lot of companies have reserved more than one domain name for their organization. Multiple of those domain name are not been used for email

Read More »
Uncategorized
Mark de Groot

Realtime LVM filesystem resize

Sometimes you need to resize your partition of your VPS system when you for example requested additional diskspace. In the below tutorial I resized my

Read More »