We've just moved to a larger and even more centrally located office, near the Zürich main station. The address is now Neugasse 10, the postal code remains 8005.
In part one of this blog post I have indicated why secure remote firmware
updates are important, and how a firmware update mechanism may be threatened. Let us look at some ways for mitigating such threats.
When a machine, e.g. a printing machine, is connected to the Internet, this enables remote diagnostics and remote control. This in turn allows to react faster when a problem occurs, downtime can be reduced or even prevented completely thanks to predictive maintenance. A gateway is used to connect the machine to the Internet - and potentially misused by attackers to get access to the machine (visualized by the shark in the simple Internet of Things model shown below).