Yo - an app so deceptively simple it is regularly dismissed as stupid or pointless - has been headlining the web’s tech news pages recently. For those that aren’t up to speed, Yo allows you to send a one-word message to friends who you have added on Yo. (Guess what that one word message is!)

This week is Connect Smart week. That means you will see and hear about a number of initiatives that underline the need to be cyber-savvy and for people to do more to protect themselves online. The internet is home to networked convenience and fast information but it is also where identity theft, fraud and other kinds of nefarious things happen.

Profile Engine hasn’t breached the law, but it might remind you to keep your info on lock down. “What you do online has consequences”. “The internet never forgets”. “Once it’s public, it’s anyone’s”. We’re sure you’re all tired of hearing these warnings. But, they’re quite true.

If two YouTube videos constitute a trend, then these two demonstrate how people need more reminders about the dangers of having loose privacy settings when posting personal information on Facebook and their other social media profiles.

Would you stuff your wheelie bin with letters from your GP, bank statements, your latest pay review notice? Surely not. Who knows where it would end up, if indeed it made it off the street.

I enjoy reading Peta Mathias’ weekly advice column. Her advice is practical, pragmatic and witty on subjects ranging from moving on after a relationship to getting cling wrap to adhere to pottery.

"I do not believe it makes sense to say that [Excel spreadsheets]* are inherently evil. In certain circumstances, they can play a positive role-as they have in the past. But clearly they have a power to do great harm." Des Browne, UK Defence Minister.

As far as arbitrary periods of time for measuring progress go, 100 days is pretty neat. That’s about how long I’ve been Privacy Commissioner.