Which security innovation, first widely implemented in 1994, is credited with making consumers comfortable enough to begin using credit cards for online purchases, helping launch the modern e-commerce era?

Test your knowledge about pivotal moments in e-commerce history that transformed retail forever. While online shopping seems ubiquitous today, specific technological and business innovations created the foundation for our current digital marketplace. This trivia question explores a critical security advancement that helped overcome consumer hesitation about online purchasing in the early days of e-commerce, opening the floodgates to the trillion-dollar industry we know today.

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SSL (Secure Sockets Layer) encryption
Two-factor authentication
Digital signatures
CAPTCHA verification