Enter Milko den Leeuw, a Dutch restorer and art researcher who has, he believes, developed the definitive method for authenticating works of art, and an alternative to the flawed established authentication process currently in place.

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To verify those identities--a critical point in securing classified conversations--they'll join the world through the same authentication process they use to log on to their government networks.

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To win the deal, DocuSign had to meet IRS requirements in the areas of secure authentication, consumer consent, separate audit trail, and tamper proof process.

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These included the introduction of encryption to prevent third-parties eavesdropping on messages sent via unprotected wi-fi networks, and the adoption of a stronger authentication process to make it harder for scammers to hack accounts in order to send messages from them.

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