4. Your Phone Number - That’s a Bad Idea!
There are so many posts online from people saying “New phone! Here’s my new number! ….”. This is a really, really bad idea! Sure, it’s an easy way for your family and friends to get your new number, but you are literally giving your contact information to the entire internet, opening yourself up to both potential fraudsters and millions of cold calling companies who trawl the net for numbers to add to their databases.