Securing the Mainframe

Security consultants tend to specialise fairly early in their careers, and one of the areas I chose to specialise in, and something that Digital Interruption offers our clients, is mainframe security assessments. For many of us, unless you’re over a certain age, or have a strange fixation on weird machines, you’ll likely have never interacted with a mainframe before. There are a few popular (and contradictory) myths in the infosec community about mainframes: They’re legacy They’re the same as supercomputers Nothing a cluster of cloud computers can’t beat Nobody uses […]

TEMPEST in Action

Digital Interruption is lucky enough to have a penetration testing team which consists of experienced hackers and penetration testers. This means we often have the pleasure of experimenting with attacks and demonstrating weaknesses that might otherwise only be seen as theoretical attacks. One great example of this is TEMPEST – also known as Van Eck Phreaking. In this blog post, we’ll see TEMPEST in action and try and help you understand whether this is an attack you should worry about. What is TEMPEST? First, some background. TEMPEST is an attack […]