Despite still related to December 2014, here is the first timeline for 2015 covering the main events occurred between the 16th and 31st December 2014 (first part here).
No doubt, this Christmas will be remembered for the unwelcome surprise of the DDoS attack performed by the infamous Lizard Squad against the online services of Sony and Microsoft. An attack that has shattered the dreams of many players, just few minutes after unwrapping their brand new consoles under the Christmas Tree. However, the light that burns twice as bright burns half as long, and inevitably two members of the collective have allegedly been arrested (not before having attempted a Sybil Attack against Tor).
From an information security perspective, the second half of June has been characterized by the hacking collective UGNAZI (and its members) and also by an individual hacker: .c0mrade AKA @OfficialComrade.
Both entities have left behind them a long trail of Cyber Attacks against different targets (in several cases the real extent of the attack is uncertain) and with different techniques, although it is likely that the UGNAZI collective will be forced to change the plans after the arrest of the group’s leader, JoshTheGod, nearly at the end of the month (27thof June), effectively they have considerably reduced the rate of their cyber attacks in the second part of the analyzed period.