Instagram users hit by virus-infected fake app which secretly runs up enormous bills

If you've downloaded the hit app Instagram for Android, you could be in for a huge mobile phone bill.

A 'clone' site offers an infected version of the Android app which sends SMS messages to premium services, running up enormous bills.

The app has millions of users around the world, and was recently acquired by Facebook for $1 billion.

Rather surreally, the app is also filled with pictures of a Russian 'mystery man' - apparently a cult joke on Russian websites, from a photo showing a casually dressed man at a Russian wedding.

Android users are at risk if they downloaded the app from sites other than the official Google Play market. Read More