5 Traps: How do I use public Wi-Fi safely?[ Tue, 12 Apr 2011 00:28:13 GMT ]You've heard it for years: Using free coffee shop Wi-Fi isn't safe. But then, you've done it anyway, viewing critical work documents or doing online banking. So let's talk turkey. To borrow from a modern parental dilemma, I really don't want you doing that, but if you do, you should be taking the proper precautions.