Installing Avast Mobile Security is to protect what’s inside your and whats coming into your phone.

Any wireless hotspots or wifi, security is always an issue. If not privacy.

Be it its a password protected wifi or not, remember wireless data is transmitted between your phone and router.

The best but slower and more complex way is to use encrypted surfing mode, where all data transmitted between the two devices will be encrypted, but this is not fully compatible for most wifi connections.

Thus, for all other wireless activities, data can be easily ‘captured’ and ‘read’ by those with evil intentions.

Best practice: Try not to perform any risky or highly sensitive work on wireless, go wired. You need to go back to the basic of LAN-connected laptops or desktops for those works.

Hope this helps.