EVen your mobile will warn you for security risk when you are connected to a public wifi and its never recommended to use them when you are doing something more valuable like logging in to your bank account,etc.
Hacker is great on this thing and even you are using your own IP address still they can harm you specially if you are entering sites randomly that can bring malware or some phishing sites as well
What we need is better bookmarked all the sites you usually use,and prefer from surfing randomly because those sites might hurt our accounts