[deanhills]

Since moving to Canada in May, I've had to use a smart phone continuously. It's now my main phone. I'm using Xperia X.

I use it for my emails, phone, texts and whatsapp.

Is it necessary to load extra security? Now and then when I have WiFi there is a SMS that suggests I use AVG protection.

What security - if necessary - should I get? I prefer one that is very light and doesn't take much memory and data space.