David Kahn, a journalist and historian who unlocked the hidden world of cryptology in his best-selling 1967 book “The Codebreakers” and became a preeminent scholar of signals intelligence, revered ...

His 1967 book, “The Codebreakers,” introduced the world to cryptology and inspired the emergence of private-sector encrypted communication. By Clay Risen David Kahn, whose 1967 book, “The Codebreakers ...

Author and journalist David Kahn, a former reporter and editor for Newsday, died on Jan. 23 at his assisted-living facility in the Bronx. He was 93. Raised — and for many years residing — in Great ...