This is from my Daughters 5C:
Just hit continue, likely the security certificate has expired...
I had the same thing happen to me yesterday. Don't worry about it. It has to do with Verizon.
No no no bad idea!
Certificate warnings can indicate a man in the middle attack. If you're on a public wifi and see one of these warnings, someone could be impersonating the server, trying to steal your login information!
Never blindly hit continue when you see a certificate warning. The best thing is is to hit cancel and try again on a different network.
The chances of that being the case is about 1:100,000
The chances of that being the case is about 1:100,000
No, it's considerably greater than that.
And if you take that attitude, we might as well not use SSL at all.
The chances of that being the case is about 1:100,000
press continue and enjoy your home wifi