Moscow (CNN) It looked like a spy agency's worst nightmare: The unmasking of several agents, and the disclosure of sloppy tradecraft in what appeared to be a bungled intelligence operation.

But heads have yet to roll -- at least not publicly -- at the GRU, Russia's military intelligence agency.

On Thursday, Western governments mounted a coordinated effort to unmask what they claimed were "brazen" efforts by GRU agents to sow chaos on foreign soil.

In a briefing Thursday, the Dutch government said it had foiled a "close-access hack operation" by the GRU aimed at the Organisation for the Prohibition of Chemical Weapons (OPCW), the world's chemical-weapons watchdog. The Dutch claimed that the four alleged agents planned to travel next to an OPCW-accredited laboratory in Switzerland, but did not get there because their operation was intercepted.

That same day, Britain accused the GRU of carrying out a worldwide campaign of "malicious" cyberattacks , and the US Justice Department announced criminal charges against seven GRU officers, accusing them of involvement in an effort to deflect attention from Russia's state-sponsored sports doping program.

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