10 posts

File extensions you can block in your email system

Generally, files attached to emails should be avoided for several reasons: Emails get heavier and some systems have size limitations You lose access to what is attached (with some exceptions, of course) Some systems might block specific extensions, and this is exactly what I am talking about But, since we […]

Red teams, Blue teams

I am not the first one writing about red and blue teams. And I, for sure, will not be the last. Before going further, let me explain the reason for writing this post. The topic has been turning in my head for quite some time now. Still, I recently watched […]

Using a VPN? Here are some tips

Virtual Private Networks, another essential item in our lives that without taking some considerations, can become a living hell. Ok, maybe I am exagerating…

Filtering DNS requests to prevent phishing

Domain names serve as memorizable names for websites and other services on the Internet. However, computers access Internet devices by their IP addresses. And it is a good idea to try to filtering them in order to prevent phishing.