How do protocols keep data safe?
Protocols keep data safe by using passwords, like WI-FI you need a password to put in before you can use the internet access.For example you should change your password regularly so ifn a case that you do get hacked or someone discovers your password, you will still be safe and they can not do as much damage as they would have done if they knew it permanently. Be careful when you access your email or whatever you need to keep safe make sure you log out because some websites will leave you logged in for the future but someone else could access it.
A decent start, but you need to describe how encryption works to finish this one.
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