Which historic transaction in 1994 is widely considered the first secure retail e-commerce purchase on the internet?

The history of e-commerce represents one of the most significant transformations in retail. Before Amazon and eBay dominated online shopping, pioneering companies laid the groundwork for what would become a global phenomenon. This trivia question explores the early days of online retail and the breakthrough moment when secure transactions became possible, forever changing how we shop.

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A pizza ordered from Pizza Hut using PizzaNet
A Sting CD purchased through NetMarket
A book ordered from Books.com (the predecessor to Barnes & Noble online)
A transaction on the Internet Shopping Network, backed by the Home Shopping Network