Which federal cybersecurity framework, implemented in 2021, requires government agencies to adopt zero-trust architecture and implement multi-factor authentication within specific timeframes?

In an era of increasing digital threats to national infrastructure, government cybersecurity has become a critical component of national security strategy. Federal agencies implement various security protocols and technologies to protect sensitive information and critical infrastructure from malicious actors. This trivia question focuses on a significant federal cybersecurity initiative that changed how government agencies approach digital security.

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Executive Order 14028 (Improving the Nation's Cybersecurity)
The Federal Information Security Management Act (FISMA) 2.0
The Government Cybersecurity Enhancement Act
The Digital Infrastructure Security Protocol (DISP)