img-header

Segmentation in SD-WAN

sdwanThe SD-WAN market is gaining more and more strength; software-defined and managed connectivity solutions provide ever more possibilities and functionalities to adapt to the reality of business networks. One of the key aspects that all companies value is security. In SD-WAN networks, security can be provided in a number of ways, from encrypting communications to firewall policies, through IDS and IPS tools to the element that forms the topic of this blog post: segmentation.

(more…)

Security holes in modern processor hardware

cybersecurityA few months ago (January 2018), the media reported breaking news of alleged security failures for Intel and ARM processors. In order to understand these “weaknesses”, and before briefly describing the nature of these “security holes”, we need to list some of the common characteristics shared by modern processors.

(more…)

A Spectre is haunting not only Europe

Meltdown and spectreThe Meltdown and Spectre vulnerabilities were discovered last year, but only disclosed recently to the public. Both vulnerabilities are of the same family. They fundamentally affect certain CPU designs with around 20-years’ worth of processors and certain upcoming designs cannot be classified totally secure.

(more…)

WannaCry?

wannacry

The first and so far the only time I was personally involved, (or to be more precise my son who at that time was eleven years old), in a cyber-attack by ransomware was in 2012. The computer of my son was apparently blocked by the Federal Criminal Police Office due to some illegal actions, such as sending spam mails and even worse. At least that’s what appeared on the screen in poor German. Strangely enough a fee of 100 Euros would unblock the computer. Well, I wondered how the 100 Euros would affect  the illegal activities, my eleven year old boy had committed but you never know. Even though it was obvious that we didn’t get into trouble with the public authorities, my son was not amused by the fact that his computer was out of order. In fact, he must have felt exactly how the latest cyber attack has been dubbed: WannaCry.

(more…)