Popular YouTube channel WatchMojo recently made headlines after it suffered a massive cyber attack. Though the hackers seemed to have infiltrated the channel simply for some harmless prank, it did nonetheless raise serious questions about the security of YouTube's growing lineup of users.

YouTube is noted for using two-factor authentication, a system that is considered pretty secure by many. Despite this, however, the hackers, who go by the name PoodleCorp, were able to bypass the massive site's security measures.

It was not only WatchMojo that was victimized by PoodleCorp, either. Just like WatchMojo, RedMercy, a gaming commentary channel owned by Dmitry Garaging, was also hacked. Unlike the tedious yet rather harmless hack the cyber attackers did to WatchMojo, however, PoodleCorp did something far more serious to RedMercy.

Apart from Garaging's YouTube account, his Twitter and PayPal accounts were also hacked by the same group. Responding to the event, garaging immediately contacted YouTube and PayPal about the attack. He was eventually able to retrieve access to his accounts. His reprieve was brief, however, as his Twitter account was immediately hacked once more, prompting the microblogging giant to suspend his account.

With these instances happening now, questions about the motivation of PoodleCorp, which so far involves hackers who go by the name of Obnoxious and Pein, have begun to emerge. While their initial hack of WatchMojo, which involved renaming all of the channels' videos to their names, seemed like a harmless prank, the incident nonetheless cost the channel significant revenue.

Apart from this, the fact that they were able to hack into Garaging's PayPal account was quite alarming. Thus, it would seem like PoodleCorp is starting to get more aggressive, with its attacks being bolder and more prominent.

Very little is known about the hackers who attacked the two YouTube channels. PoodleCorp, which has an active Twitter account, has been pretty silent, posting very few updates about their operations. If any, the group has managed to make themselves the dark horse of the hacking world.

Everyone knows that they are there, but no one knows when they would act, or attack.