Recent cyberattacks on Twitter and other popular Web services disrupted the lives of millions

The recent cyberattacks on Twitter and other popular Web services disrupted the lives of millions of Internet users

Preliminary indications have the attacks originating in Russia and Georgia (Former Soviet Union Territory).

NYTIMES.COM stated:
"Security experts say that it is nearly impossible to determine who exactly is behind the attack, which disrupted access to Twitter, Facebook, LiveJournal and some Google sites on Thursday and continued to affect many Twitter users into Friday evening."

Twitter still fighting off DoS attack

According to researchers at SecurityOrb.com Twitter the social networking micro-blogging is still struggling to recover from the DoS attack. User have not been able to post comments via SMS, the web or client based-applications. It is apperent that the company continues to fight off the attack.

Below is part of message that was posted on their blog:

"Due to defensive measures we've taken against the ongoing denial-of-service attack, some Twitter clients are unable to communicate with our API, and many users are unable to tweet via SMS."

"We are working as quickly as possible to restore our full service."

There is no word on when service will resume...

Source: SecurityOrb.com

DoS Cyber Attack Takes Twitter Offline

Attacks on the social networking site Twitter Thursday morning left many users unable to access and update their status.

Twitter was back up by mid-day and it was reported that the attacks had originated either from Russia or the former Soviet republic Georgia.

Twitter confirmed the outage was linked to malicious attackers in a brief status message posted around 11:00 a.m EST.

We are defending against a denial-of-service attack, and will update status again shortly.

Update: the site is back up, but we are continuing to defend and recover from this attack.

Facebook experienced problems for part of the day, but it was unknown if they were the result of this attack.

References:

Source: http://isc.sans.org/diary.html?storyid=6922
Source: http://status.twitter.com/post/157191978/ongoing-denial-of-service-attack
Source: http://blogs.zdnet.com/security/?p=3953
Source: http://www.courant.com/business/hc-twitter0807.artaug07,0,4042649.story