HED doesn't tell the whole story - in the article an unidentified security expert is quoted:<p><i>One security professional said the group probably used a DDoS-for-hire site to launch an attack against Twitter on Tuesday, but downplayed the likelihood the group was solely responsible for bringing down the social media network.</i>
<i>One security professional said the group probably used a DDoS-for-hire site to launch an attack against Twitter on Tuesday, but downplayed the likelihood the group was solely responsible for bringing down the social media network.</i><p><i>"It was mere coincidence," the security professional said. "The backend of Twitter is having issues, which is unrelated to the very small attack."</i><p>More like "Twitter suffers sustained outage coincidentally during hacker attack"
<i>...its most dedicated users...had nowhere to complain about the interruption.</i><p>Amusing, but poignant: We go to Twitter when something is down or an earthquake happens, but where do we go when Twitter itself is down?
I highly doubt that a site that operates at the scale of Twitter would be susceptible to a DDoS; or wouldn't at least of provisions in place to lessen the effect of such an attack.