How Can a PIN Be As Secure as a Password?

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I get that the whole sign in-with-a-PIN thing in Windows 10 is convenient, but how can my 4 digit PIN possibly be as secure as my Microsoft account sign in password?

It can be as secure – perhaps even more secure – because it’s actually¬†used in a slightly different way.

You can also choose to increase its security by using some of the same techniques we use for passwords in general.

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