Remote access to industrial devices has many undeniable advantages. In the case of a machine failure it enables you to reprogram or repair the machine much faster. The technician dealing with the problem does not have to be physically present on site – whether they are in a neighbouring plant or thousands of kilometres away they have access to the machine via their computer or tablet. This is certainly very cost-effective. Yet many still have doubts about the security of transferred data as well as the reliability of the connection.