IPhone 5 Internet 4G Problem

I just need to know if it's safe to log in to websites and type in important things like passwords over the internet when I'm using 4G, not Wi-Fi? I just need to make sure no ones going to hack in to my internet if I'm just using 4G LTE, not Wi-Fi?

It's safe, don't worry. Both have vulnerabilities but the only solution is to stop using the internet altogether.

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