Are Public Wifi and Phone Chargers Actually Safe?

The Washington Post's "Tech Friend" newsletter suggests some "tech fears you can stop worrying about." And it starts by reasuring readers, "You're fine using the WiFi in a coffee shop, hotel or airport."Yes, it is safe," said Chester Wisniewski, a digital security specialist with the firm Sophos. Five or 10 years ago, it wasn't secure to use the shared WiFi in a coffee shop or another place outside your home. But now, most websites and apps scramble whatever you do online. That makes it tough fo