Ridiculous
As an IT aware person, like many here, I can think of a few ways which could get around any 'interception' of encrypted communications assuming it was done in an organised manner. I am sure there are far better 'brains' than mine that could think up even subtle better ways.
Apart from risky backdoors, it is a fundamental requirement of the security of business and banking that transactions are fully secure. Perhaps the EEC and Trump should seek advice from the 'Ruskies' who seem to have some sort of an advantage on this.