Pro-Syrian hackers ‘Syrian Electronic Army’ have compromised the official Twitter account of the Microsoft News, Xbox Support and TechNet blog. The SEA also defaced the Microsoft’s TechNet Blog (blogs.technet.com), and posted deface not over the blog. Microsoft says the situation is under control and no customer data was compromised. The hacked tweets were visible on Microsoft’s Twitter account for at least an hours, but have since been deleted. For the time being, their blog is also down for maintenance.
Source: https://thehackernews.com/2014/01/microsoft-official-blog-and-twitter.html

