From Pyongyang with love – North Korea restarts coded spy broadcasts

SEOUL (Reuters) – “Now we’ll begin a mathematics review assignment for members of the 27th expeditionary unit of the distance learning university,” the woman’s voice crackled over the radio.

North resumes coded radio broadcast

“Turn to page 459, question 35; 913, question 55; 135, question 86.”

Isolated North Korea has restarted coded radio broadcasts, presumed to be targeted at its spies, for the first time in 16 years this month, South Korea said on Wednesday.

The messages, a recording of which was broadcast by South Korean TV channel KBS, were disguised as a mathematics lesson for distance learners and reappeared on North Korean radio station Voice of Korea in the early hours of Friday.

FOR YOUR SPIES ONLY

The radio messages, also known as numbers stations, work by broadcasting strings of seemingly random numbers over shortwave signals to an agent in the field. The technique, a method of sending one-way secret messages, dates to the French Resistance in...
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