The End of Cybersecurity
America’s digital defenses are failing—but AI can save them.
Since its founding in 1922, Foreign Affairs has been the leading forum for serious discussion of American foreign policy and global affairs.
JEN EASTERLY is a Visiting Fellow of Practice at the Blavatnik School of Government at Oxford University. She served as the Director of the Cybersecurity and Infrastructure Security Agency at the U.S. Department of Homeland Security from 2021 to 2025.
America’s Digital Defenses Are Failing—but AI Can Save Them
In November 1988, the Morris worm—an experimental computer program written by a curious graduate student—unintentionally crippled the early Internet and exposed for the first time the serious consequences of poorly designed software.
Nearly 40 years later, the world still runs on fragile code riddled with the same kinds of flaws and defects.
Author summary: America's cybersecurity is failing.
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