I notice that if I’ve traveled and my computer’s system clock is wrong by time zone, or I have not started up a computer in a long time (battery went dead) and its clock is wrong, that computer will not even be able to visit regular old websites on the internet (to look up information, what time it is, etc).
But if I reset the clock to approximately the correct time, things are back to normal. Why does it depend on this?
In: Technology
Website ‘certificates’ are timestamped and are only valid for a specific amount of time. If your computer sees a certificate that is wildly different from its clock, it will assume the certificate is fake and block the website for your safety.
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