WirelessMoves

Ever since I discovered last year that Opera’s web browser on my smartphone was responsible for strange queries to my web server from China to generate a thumbnail image (see ‘When Opera Calls From China‘) it had been at the back of my mind that Opera is not open source and hence I have little trust in it. These days it also seems like Opera is going to be sold to a Chinese consortium which would make it even less attractive for me to continue using it. Time to change to another browser on my Android based devices then. How about Firefox?

Continue reading Time To Switch From Opera to Firefox On Mobile – At Least For Me

Quite strange that only Bruce Schneier has picked up on this so far but researches have developed a proof of concept of how to exploit HID (Human Interface Device) USB dongles for wireless mice and keyboards to accept keystrokes from rouge third party transmitters.

Continue reading MouseJack Vulnerability – Have You Already Patched Your Mouse?

Eduroam is a great Wi-Fi login system for students and researches that works with certificates for secure access of on-campus Wi-Fi networks and has the added benefit that Eduroam users can attach to any other Eduroam network around the globe without changing their Wi-Fi configuration. That’s the theory and paper is patient. So when I recently was at the University of Utrecht in the Netherlands I tested if the theory holds up with an Eduroam setup of the University of Vienna.

Continue reading Eduroaming in Utrecht

Theoretical Internet speeds in fixed line and mobile networks keep rising, which is a nice thing. Unfortunately, round trip delay times are not decreasing at the same rate, mostly due to physical limits these days which at some point will limit the maximum throughput of a single TCP stream no matter how fat the pipe is and how fast a server can deliver data. So where is this limit?

Continue reading What Is My Theoretical Top Internet Speed?

Today I came across this great article by Robert Penz in which he describes measures how companies can reduce the risk of Ransomware encrypting their files on network shares and other devices in the local network. Also, he describes how a company can prepare itself in case it still happens to reduce their downtime as much as possible. I found one of his suggestions of particular interest: Snapshots of network shares.

Continue reading Good Advice To Block, Detect and Mitigate Ransomware Damage In Companies

When it comes to investigative reporting in the telecommunication domain, German telecoms news website Teltarif certainly is at the forefront. Recently they noticed that the public network coverage maps of one of the network operators in Germany now show that in many cities, they have deployed LTE in three different frequency bands.

Continue reading One German LTE Network Operator Now On-Air with 50 MHz