The phrase "secret espionage" is grammatically correct and can be used in written English.
It refers to covert activities related to intelligence gathering and espionage. Example: The government launched a secret espionage mission to spy on its neighboring country's military plans.
An account of the mysterious military installation, which the author contends is the home of secret espionage programs.
Kerry and Zarif's meeting in Vienna came just two weeks after Rezaian, a Washington Post correspondent, was convicted in a secret espionage trial in Iran.
Jason Rezaian was convicted in Iran after weeks of waiting for a verdict in his secret espionage trial, the Washington Post said of its Tehran bureau chief on Monday.
Its members controlled the secret police, espionage, and counterespionage, and they exercised in some measure their own judicial system.
Cult hero Joss Whedon follows his Avengers movie superhit with more from the world of Marvel, helming this typically savvy story of a secret military espionage agency.
Rather than simply try to penetrate a network using brute force, today's secret data espionage warriors mimic real users — sometimes corporate partners, sometimes colleagues — to infiltrate a network using hijacked identities.
July 22 , 2016 Top secret NATO espionage agents, Robert Ludlum and John Le Carre, stationed in Moscow, have uncovered intelligence regarding the disappearance of two of Vladimir Putin's top cyber experts, Leopold Tolstoy and Fyodor Dostoevsky.
Only a human ostrich, stubbornly refusing to face disturbing facts, would ascribe their success to captured scientists from Peenemünde or Cambridge, or to the pilfering of western secrets by espionage.
They have been charged with obtaining and revealing state secrets "for espionage purposes" and seeking to violently overthrow the Turkish government as well as aiding an "armed terrorist organisation", according to the indictment.
And the wholesale loss of secrets through espionage risks eroding its economic and military lead.Hardware and soft warIf cyberarms-control is to America's advantage, it would be wise to shape such accords while it still has the upper hand in cyberspace.
The criticism of federal authorities comes after years of conflict and tension between the Justice Department and the Federal Bureau of Investigation about how to obtain evidence in a case that began as an investigation into suspicions that China had obtained atomic secrets through espionage.
