Two-Factor Authentication is more secure because it is based on three types of validation: something the user knows, something the user have, and something the user is.
Let's find out something more about time stamps and how to affix a one to your IT documents using Namirial tools.
a digital document?Signing a digital document is a new way to sign a contract or an agreement.A digital document is “the computerized representation of judicially relevant deeds, events or data”. Here is how you can sign them.
To sign any electronic document you need a digital signature. Here is how to sign a PDF using an electronic signature.