The previously-unheard-of group «Deviant Behaviors for the Expansion of Revolutionary Terrorism - International Revolutionary Front» claimed responsibility late on Friday for the attack on Microsoft's offices in Athens.
The declaration letter by the group was uploaded on an anarchist website and police's anti-terrorism unit is examining its authenticity.
The author of the letter brands Wednesday's attack at the company's headquarters in Maroussi «an act of war against the sinister silence and the generalized captivity."
Noone was injured by the attack that took place in the early hours of the morning. The building on Kifissias Avenue sustained significant damage, though.