2FA was invented in 1983.

Title: "Two-Factor Authentication (2FA): A Tale of Digital Security from 1983" In the early days of the digital revolution, circa 1983, an American engineer named David Chaum embarked on a visionary quest to enhance online security. Recognizing the growing importance of safeguarding digital information, he conceived a groundbreaking idea – Two-Factor Authentication, or 2FA. 2FA was a simple yet ingenious concept. It demanded not just a single password but a dual layer of verification to access sensitive data or systems. The first layer was "something you know" – typically a password or PIN. The second was "something you have," which could be a physical possession like a smart card, a mobile device, or even a biometric feature like a fingerprint. This innovative approach significantly fortified online security. Even if a malicious actor managed to acquire your password, they would still be thwarted by the need for the second factor, a possession that only you controlled. As the digital landscape expanded and cyber threats became more sophisticated, 2FA evolved. No longer confined to high-security environments, it became a vital tool for everyday users. Today, 2FA is a cornerstone of modern cybersecurity, offering protection to email accounts, social media profiles, and financial transactions. The enduring tale of 2FA, born in 1983, underscores the timeless importance of digital protection. In an era where our digital lives are deeply intertwined, this security innovation continues to stand guard, ensuring that our information remains safe and secure in an ever-evolving digital world.