For the last 10 years, we can see absolute revolution regarding the use of digital systems in every part of our life – we call it today the 'Internet of things'. It is in all our social life, it is in every place in our private and work day life, and have a dramatic impact on the new generations. This revolution has an advantage and it brings the human kind to a completely different place for good, but alongside, a few weaknesses. One of these weaknesses is the vulnerability exposures to our privacy and the posiible damage to critical infrastructure by terrorists. The lecture will describe this issue, analyze the present and give a look at the expected future.