What is "phreakers"

Usage examples of "phreakers".

It can decrypt them, and write the results into another region of the computer's memory, and leave that data there indefinitely, and the Van Eck phreakers will never be the wiser.

None of them have had title bars on their windows, and so the Van Eck phreakers surveilling him have presumably had a terrible time keeping track of which is which.

It can decrypt them, and write the results into another region of the computer’s memory, and leave that data there indefinitely, and the Van Eck phreakers will never be the wiser.