English Computer Hacker Sean Caffrey who admitted stealing several online records from US military communications system pleaded guilty on Thursday at Birmingham Crown Court.

25 years old Sean Caffrey from Sutton Coldfield(UK), managed to steal the usernames and email address of more than 800 clients of a satellite communications system, and additionally, of around 30,000 satellite telephones says NCA.

Caffrey was arrested in March of 2015, as per the NCA. At the time, the NCA said a hacker stole data from “an international satellite message dissemination system”.UK National Crime Agency officers found the stolen information on his hard drives after forensic examinations of his seized PCs.

NCA said the hacker also posted the proof of hack in Pastebin website in name LizardSquad (Blackhat group well known for DDOS attacks).

“We smite the Lizards, LizardSquad your time is near. We’re in your bases, we
control your satellites. The missiles shall rein upon thy who claim alliance, 
watch your heads, ** T-47:59:59 until lift off. We're one, we're many, we lurk in
 the dark, EMSS: we're everywhere and anywhere. Live Free Die Hard! 
DoD,EMSS: Enhanced Mobile Satellite Services is not all, Department of Defense has
no Defenses.”
Hundreds of User Accounts stolen from US Military Communications
                                                                     Message Posted By Caffrey

NCA officers additionally found that an online messaging account connected to the attack had been opened and worked under an alias Caffrey’s PCs.

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The DoD said it cost roughly $628,000 to repair the destruction caused by the hacker’s interruption.

After strong partnership working between the NCA, the FBI and the DoD’s Defense 
Criminal Investigative Service there was very clear, very compelling evidence 
against Sean Caffrey.Said investigations manager at the NCA Janey Young.
She also said,“No one should think that cyber crime is victimless or that they can
get away with it.“The NCA has people with skills like Caffrey’s, but they’re doing
the opposite to him in detecting cyber criminals and bringing them to justice.
“We’re working to keep the internet a safe space for people who use it
legitimately.”

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