Spain: Man arrested over hacking claimed by 'Phineas Fisher'

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  • In this Tuesday, Jan. 31, 2017 photo,  a computer screen shows an archived copy of the Twitter feed belonging to Phineas Fisher, a hacker who claimed responsibility for breaching the union of the Mossos d'Esquadra, Catalonia's regional police, last year. Spanish police have arrested three people over a data breach linked to a series of dramatic intrusions at European spy software companies — feeding speculation that the net has closed on an online Robin Hood figure known as Phineas Fisher. (AP Photo/Raphael Satter)

    In this Tuesday, Jan. 31, 2017 photo, a computer screen shows an archived copy of the Twitter feed belonging to Phineas Fisher, a hacker who claimed responsibility for breaching the union of the Mossos d'Esquadra, Catalonia's regional police, last ... year. Spanish police have arrested three people over a data breach linked to a series of dramatic intrusions at European spy software companies — feeding speculation that the net has closed on an online Robin Hood figure known as Phineas Fisher. (AP Photo/Raphael Satter) (The Associated Press)

  • In this Tuesday, Jan. 31, 2017 photo,  a computer screen shows an archived copy of the Twitter feed belonging to Phineas Fisher, a hacker who claimed responsibility for breaching the union of the Mossos d'Esquadra, Catalonia's regional police, last year. Spanish police have arrested three people over a data breach linked to a series of dramatic intrusions at European spy software companies — feeding speculation that the net has closed on an online Robin Hood figure known as Phineas Fisher. (AP Photo/Raphael Satter)

    In this Tuesday, Jan. 31, 2017 photo, a computer screen shows an archived copy of the Twitter feed belonging to Phineas Fisher, a hacker who claimed responsibility for breaching the union of the Mossos d'Esquadra, Catalonia's regional police, last ... year. Spanish police have arrested three people over a data breach linked to a series of dramatic intrusions at European spy software companies — feeding speculation that the net has closed on an online Robin Hood figure known as Phineas Fisher. (AP Photo/Raphael Satter) (The Associated Press)

Spanish police have arrested a man over a data breach linked to a series of electronic intrusions at European spy software companies.

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A spokesman with Mossos d'Esquadra, Catalonia's regional police, said the man arrested Tuesday in Salamanca was believed to be responsible for breaking into the website of a Spanish police labor union and leaking the personal data of more than 5,500 officers.

That breach was claimed last year by "Phineas Fisher," who became something of a hacker folk hero in 2014 for publishing data from Britain's Gamma Group — responsible at the time for spyware known as FinFisher. The hacker cemented the reputation by claiming responsibility for a breach at Italy's Hacking Team in 2015.

The police spokesman declined to be identified or comment on the suspect's identity.