Which invention from the 1990s is credited with making e-commerce viable by enabling secure online transactions for the first time?

The world of online shopping has transformed dramatically since its inception. Behind today's seamless e-commerce experiences lie groundbreaking inventions and discoveries that revolutionized retail. This trivia tests your knowledge about a pivotal moment in e-commerce history that changed how consumers interact with retailers forever. Do you know which technological innovation first enabled secure online transactions?

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Secure Sockets Layer (SSL) encryption
One-click purchasing patent
Digital shopping cart interface
Recommendation algorithm system