IT Pro is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission. Learn more

Twitter bounces back from outage

Social networking site downgrades to previous version, as hacker claims responsibility for taking it offline.

Traffic cones

Social networking site Twitter rolled back to a previous version of its website following an outage that left users unable to access the site.

In a blog post, Mazen Rawashdeh, vice president of engineering at Twitter, downplayed suggestions the site was hacked and said the outage was caused by a "cascading" bug.

This wasn't due to a hack or our new office or Euro 2012 or GIF avatars, as some have speculated.

However, at least one hacker group claimed responsibility for the downtime.

UgNazi, a relatively new group on the hacking scene and loosely affiliated with Lulzsec, said it launched a Distributed Denial of Service (DDoS) attack against Twitter over the company's support for the Cyber Intelligence Sharing and Protection Act.

Rawashdeh said the fault was discovered at 9am Pacific Time yesterday. "We discovered that Twitter was inaccessible for all web users, and mobile clients were not showing new Tweets," he said.

He said engineers began investigations into the downtime and found there was a "cascading bug in one of our infrastructure components."

"This wasn't due to a hack or our new office or Euro 2012 or GIF avatars, as some have speculated today," said Rawashdeh.

A cascading bug is one with an effect that isn't confined to a particular software element, he explained.

"One of the characteristics of such a bug is that it can have a significant impact on all users, worldwide, which was the case today.

"As soon as we discovered it, we took corrective actions, which included rolling back to a previous stable version of Twitter," he said.

He apologised for the outage and noted that in the past six months, Twitter had an up time of at least 99.96 per cent and often 99.99 per cent.

"This means that in an average 24-hour period, twitter.com has been stable and available to everyone for roughly 23 hours, 59 minutes and 40-ish seconds. Not today though," he joked.

Featured Resources

Meeting the future of education with confidence

How the switch to digital learning has created an opportunity to meet the needs of every student, always

Free Download

The Total Economic Impact™ of IBM Cloud Pak® for Watson AIOps with Instana

Cost savings and business benefits

Free Download

The business value of the transformative mainframe

Modernising on the mainframe

Free Download

Technology reimagined

Why PCaaS is perfect for modern schools

Free Download

Recommended

Elon Musk offers to buy Twitter for $41.39 billion, claiming only he can 'unlock its true potential'
social media

Elon Musk offers to buy Twitter for $41.39 billion, claiming only he can 'unlock its true potential'

14 Apr 2022
Cloud security market to hit $106 billion by 2029
cloud computing

Cloud security market to hit $106 billion by 2029

11 Apr 2022
Jack Dorsey admits regret for helping to centralise the internet
Network & Internet

Jack Dorsey admits regret for helping to centralise the internet

4 Apr 2022
IT Pro News In Review: Cyber attack at Ikea, Meta ordered to sell Giphy, new Twitter CEO
cyber security

IT Pro News In Review: Cyber attack at Ikea, Meta ordered to sell Giphy, new Twitter CEO

3 Dec 2021

Most Popular

How to boot Windows 11 in Safe Mode
Microsoft Windows

How to boot Windows 11 in Safe Mode

7 Jun 2022
Attracting and retaining talent through training
Sponsored

Attracting and retaining talent through training

13 Jun 2022
Delivery firm Yodel disrupted by cyber attack
cyber attacks

Delivery firm Yodel disrupted by cyber attack

21 Jun 2022