German politicians targeted by hackers

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This is not the first time German politicians have been targeted. (Stock photo)

Berlin (CNN)Hackers have leaked the personal data of about 100 politicians from Germany's Left Party.

The private information includes credit card details, phone numbers and email addresses, party spokeswoman Sonja Giese told CNN Friday.
The data leak has affected the party's parliamentarians in the Bundestag as well as politicians at the state level, Giese said.
    Germany's BSI federal cyber agency said Friday it was as yet unclear who had perpetrated the hack.
    "We do not know who is behind this attack or where the stolen data comes from. The national cyberdefense center has taken over the central coordination," a spokesperson told CNN.
    "There are no concerns that the government network has been affected, however we will continue to investigate," the spokesperson added.
      This is not the first time German politicians have been targeted.
      In 2015, pro-Russian hackers claimed responsibility for a series of cyberattacks that brought down government websites.