"In 1967, the Israelis Eavesdropped on Arab Armies’ Phone " Topic

…Calls.

"On June 5, 1967 during the war between Israel and its Arab neighbors, Egyptian air force bomber pilot Hosni Mubarak — the future president of Egypt — called Cairo to report that his formation of Tu-16 bombers had landed at Aswan airfield. Forty-five minutes later, an Israeli air strike caught all six bombers on the ground.

It's apparent that, in the build-up to the 1967 Arab-Israeli war, the Israeli Defense Force's commanders had greater insight into the deployments of Arab units than top Egyptian, Syrian, Iraqi and Jordanian commanders did into Israeli deployments.

The question is — how? There's evidence the Israelis, among other intel efforts, tapped Arab forces' telephone lines…"
Main page
warisboring.com/telephone-wars

Amicalement
Armand

Always assume that the enemy knows what you know.

Dan

And in the other direction…

I believe it was Saddat who realized that when the next war started, he wouldn't be able to trust the reports that his army officers were giving him about the progress of the war. He also knew that Israeli officers had a bad habit of broadcasting in clear, unencrypted channels. So…

By the time the 1973 war began, Egypt had built a giant radio receiver not far from the border. Its sole purpose was to pick up Israeli radio transmissions, figure out which ones were being sent unencrypted, and use the information in those messages to figure out exactly where the front lines were at any given time. And apparently it worked great for the first few days of the war. That's about how long it took for the Israelis to work their way down the list of target priorities and finally send a plane to bomb it.

There's evidence the Israelis, among other intel efforts, tapped Arab forces' telephone lines…"

I'd be amazed if they didn't !

Agreed with L4.

It's safer to assume that a state-level opponent is listening to everything you say.

After all, aren't you doing the same to him?