Twitter briefly blocked by hackers

Hackers briefly blocked access to the popular internet messaging service, Twitter, steering traffic to another website last month, where a group reportedly calling itself the "Iranian Cyber Army" claimed responsibility.
Users trying to reach Twitter on that day were redirected to a webpage that had a picture of a green flag and a message that said, "This site has been hacked by the Iranian Cyber Army". There was no evidence that the hackers are actually linked to Iran. Websites like Twitter and Facebook helped bring attention to the Iranian opposition during the country's crackdown after its June elections, with users posting minute-by-minute updates and amateur videos.
Later that day, Twitter posted a message on its blog saying that its domain name systems' records "were temporarily compromised but have now been fixed," saying it will update more details "once we've investigated more fully".