Everything has a cost, and that does not exclude free public WiFi connections.
Some weeks ago, there was an attempted hack into the phone contact list and emails of some UK MPs. This prompted the deputy chief whip Christopher Pincher to issue a warning to his colleagues, imploring them to;“Please be wary of texts and/or emails purporting to come from colleagues asking you to provide overseas contact details and/or asking you to download a secure message app.”
Imagine going away on holiday and returning to find that in your absence your business bank account has been drained. When you ask your accountant, they are mystified - you gave the order for the transfer.
It may sound like the plot of a blockbuster thriller, but it's the scenario that has faced hundreds of business owners whose employees have fallen prey to CEO fraud.