In the past 24 hours, we've been contending with a variety of attacks that continue to change in nature and intensity. We're working to restore access to apps built on the Twitter platform that were affected by defensive measures—there was some overcompensation on our part as we tune our system to deal with this scale of attack.
The ongoing, massively coordinated attacks on Twitter this week appear to have been geopolitical in motivation. However, we don't feel it's appropriate to engage in speculative discussion about these motivations. The open exchange of information can have a positive impact globally and our job is to keep Twitter services running reliably to the best of our ability.
As a reminder, no data or personal information of any kind has been compromised. Denial of Service attacks are a known quantity on the web and they are not going away any time soon. Nevertheless, we can and will improve system response to these assaults such that they don't interfere with our normal, everyday Twittering.
As noted earlier on our Status Blog, Twitter is back in action. The continuing denial of service attack is being mitigated although there is still degraded service for some folks while we recover completely.
Over the last few hours, Twitter has been working closely with other companies and services affected by what appears to be a single, massively coordinated attack. As to the motivation behind this event, we prefer not to speculate.
Please note that no user data was compromised in this attack. This activity is about saturating a service with so many requests that it cannot respond to legitimate requests thereby denying service to intended customers or users.
We've worked hard to achieve technical stability and we're proud of our Engineering and Operations teams. Nevertheless, today's massive, globally distributed attack was a reminder that there's still lots of work ahead.
On this otherwise happy Thursday morning, Twitter is the target of a denial of service attack. Attacks such as this are malicious efforts orchestrated to disrupt and make unavailable services such as online banks, credit card payment gateways, and in this case, Twitter for intended customers or users. We are defending against this attack now and will continue to update our status blog as we continue to defend and later investigate.