Which revolutionary payment security invention, patented in 1994, enabled the e-commerce boom by allowing secure credit card transactions over the internet?

The e-commerce landscape we know today was shaped by groundbreaking innovations that forever changed how we shop online. Behind the familiar interfaces and one-click purchases lie fascinating stories of invention and discovery. Test your knowledge about a pivotal moment in e-commerce history that transformed online shopping security and consumer confidence.

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SSL (Secure Sockets Layer) encryption
PayPal's digital wallet system
Amazon's 1-Click ordering patent
SET (Secure Electronic Transaction) protocol