Which groundbreaking retail innovation, introduced in 1994, is widely credited with enabling secure online transactions and helping establish consumer confidence in e-commerce?

The world of retail was forever changed by the introduction of innovative technologies that made online shopping possible. Before the convenience of mobile apps and one-click purchases, pioneering companies had to develop secure methods for consumers to make purchases online. This trivia question focuses on a critical innovation that helped establish consumer trust in e-commerce and paved the way for today's digital marketplace.

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SSL (Secure Sockets Layer) encryption for web transactions
The first digital shopping cart interface
QR code payment technology
Biometric authentication for online purchases