Pentesting and IT Security Blog

Our passion for testing and defending infrastructures, applications and companies often leads us to the point where we want to share our thoughts and experience with the world. Here you can read all about our exploits and research and enjoy our posts, from useful howtos, to published CVEs, management strategies, new exciting tools and much more. As a provider of offensive and defensive IT services, we always welcome readers to reach out to us and ask questions or provide feedback, be it about our blog or our services, which include web-application and network penetration tests, system defense and hardening and management consulting, among others.

Tagging emails sent in plain text with Thunderbird

date Wed Dec 09, 2015 category Defense
tags Mail STARTTLS TLS Security Client Awareness Howto Encryption

Now matter how much you want to secure your mail server, to be able to actually communicate with your customers and partners, you will have to face the ugly truth that enforcing STARTTLS might not be the best idea from a business perspective. Using opportunistic encryption, meaning to encrypt mail...

A First Look at Let's Encrypt Beta

date Mon Nov 16, 2015 category Defense
tags TLS Security Howto SSL

A few days ago, the TLS certificate (SSL is dead, remember?) of my private blog www.hashtagsecurity.com expired without me noticing it, mostly because I paused any activities there to focus on my work here at LastBreach as well as this blog. Since I didn't intend on working on hashtagsecurity.com...

Tunneling TLS Scans Through SSH

date Thu Sep 03, 2015 category Pentesting
tags TLS SSH Pentesting SSL Audits Tricks

Scanning SSL/TLS configurations is part of every pentesters skillset and an often occurring task. In order to detect some of the issues, for example the use of SSLv2, certain requirements have to be met by the scanning tool. In the mentioned example, it’s that the scanner must have been build with s...