Security and a voice-controlled internet-connected cooker

I have seen adverts for a NEFF cooker that you can control with your voice via Alexa. This is spiffy, but I can also see potential security problems.  I’m not advocating attacking Alexa or a NEFF cooker – this article is a standard-issue discussion of security problems, to help people improve security.  I hope I’m … Continue reading Security and a voice-controlled internet-connected cooker

Authentication, authorisation and the chain of trust

I recently walked by my old college.  There was a sign outside: Closed to visitors.  I realised that two cards in my wallet would get me in, which made me think of some security concepts: the difference between authentication and authorisation, and the chain of trust.  I’ll go into those a bit in this article, … Continue reading Authentication, authorisation and the chain of trust