PHDays Russian cyber security event started in 2011 and since last year, in a wider dimension, it has become an international festival and the biggest cyber security event in Russia. The programs of this event are organized not only for specialists in this field, but also for the general public, especially children and teenagers. The PHDays 2 or Positive Hack Days 2 festival was held this year from June 3rd to June 6th, at the Luzhniki Sports Complex in Moscow. The event included various specialized and interactive sections and programs of cyber security and the digital world, and in the technical presentation section, “Mehdi Hatami” from Ravin Academy also gave a presentation.