People being hacked since the last Server Check.

Although I only noticed one poster actually say so, I have the impression that most or all of these recent account hacks were done without changing the MS password or PIC. Is this correct? Also are these mostly high-level accounts getting hacked?
These ideas plus the fact that many of these hacks seem to be in clusters (that is, a few buddies or guildies all getting hacked at once) leads me to believe that some of these are targeted attacks rather that just a random collection of people who did something that exposed their info.

My brother's account did not have any of its information changed, so that lines up.

However, even though he has a high level character, his account is not at all affiliated with any guild at the moment.
More than likely, the fact that many of these accounts are in the same guild/alliance is simply due to the fact that most high levels tend to be tightly knit.

I'm 100% sure its the facebook connect now. My friend who has not played in a whole year just got hacked. He only started to play the maple fb game then this happen.

You are actually 100% wrong; my brother never touched MSA.

I also am going to venture a guess and say your friend didn't link his MS account to FB simply because he wouldn't benefit at all by doing so if he doesn't play the original version.