Microsoft has joined the list of companies that claim to warn users they suspect may have been targeted by a state-sponsored attack. Quite recently, Yahoo jumped on the bandwagon, and other tech giants including Google and Facebook are also in the list.
« We’re taking this additional step of specifically letting you know if we have evidence that the attacker may be ‘state-sponsored’ because it is likely that the attack could be more sophisticated or more sustained than attacks from cybercriminals and others, » Microsoft said in a blog post. « These notifications do not mean that Microsoft’s own systems have in any way been compromised. »
Keep in mind that such notifications don’t necessarily mean that your account has been compromised – it just indicates that Microsoft has the evidence that it’s been targeted. However, in case you do receive such a notification, it’s recommend that you take some steps, including turning on two-step verification, changing password, and making sure your computer software (such as Web browser and anti-virus) is up-to-date.