The RE: 4chan email that is going around AT&T HQ
When the AT&T 4chan episode hit the internet I had posted on HN that I would tell my contact there what is going on. My contact sent me this today. It is the email going around at AT&T HQ explaining what the 4chan episode was all about. I thought it was interesting to see the nature of articles that large corporations choose to send around.

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AT&T: 4Chan Blocked Over DDoS, Not Content
Jordan Golson | Monday, July 27, 2009 | 10:22 AM PT | 3 comments
AT&T has finally issued a statement about the company’s unannounced blocking of certain parts of forum site 4Chan. A number of parties blamed AT&T for “censoring” the Internet, presuming that the company had blocked access because of the content on 4Chan, which can range from classless to tasteless to everything in between. In fact, AT&T said it blocked one section of the site to control a distributed-denial-of-service attack that was affecting an unnamed AT&T customer. 4Chan is, for lack of a better term, the “Wild West” of the Internet. It is an unedited, unmoderated message board that is surprisingly influential on the Net. 4Chan users have been credited with starting lolcats and RickRolling. Last year, a 4Chan user allegedly hacked into Sarah Palin’s Yahoo Mail account and posted the password on 4Chan. The site, especially its /b/ page, is an interesting place — very, very “not safe for work.”

According to a statement from the phone giant:
Beginning Friday, an AT&T customer was impacted by a denial-of-service attack stemming from IP addresses connected to img.4chan.org. To prevent this attack from disrupting service for the impacted AT&T customer, and to prevent the attack from spreading to impact our other customers, AT&T temporarily blocked access to the IP addresses in question for our customers. This action was in no way related to the content at img.4chan.org; our focus was on protecting our customers from malicious traffic.
Overnight Sunday, after we determined the denial-of-service threat no longer existed, AT&T removed the block on the IP addresses in question. We will continue to monitor for denial-of-service activity and any malicious traffic to protect our customers.

The story got legs on Reddit, where many commentators scorched AT&T, saying the company “censors the Internet,” and 4Chan fans formed bulletin boards to organize “retaliation” against AT&T. TechCrunch wrote that blocking a web site without notification is an “extreme breach of user trust.” Of course, the blocking evidently wasn’t over 4Chan’s content, which AT&T assures me it would never do, but instead over network protocols that were affecting other customers.

Net neutrality is all well and good, but when one particular server is negatively impacting other users, AT&T is obligated to respond. Not everyone jumped on the blame AT&T bandwagon, however. Late last night, Shon Elliott from unWired Broadband wrote on the North American Network Operators Group mailing list:
There have been a lot of customers on our network who were complaining about ACK scan reports coming from 207.126.64.181. We had no choice but to block that single IP until the attacks let up. It was a decision I made with the gentleman that owns the colo facility currently hosts 4chan [sic]. There was no other way around it. I’m sure AT&T is probably blocking it for the same reason. 4chan has been under attack for over 3 weeks, the attacks filling up an entire GigE. If you want to blame anyone, blame the script kiddies who pull this kind of stunt.

"The above newsclip is distributed to educate and inform. This does not imply accuracy nor endorsement of the views by AT&T."
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My response:

AT&T did a good thing (stopping a DDoS attack), but they need to be more on top of their “twitter relations,” people claimed to have called in to AT&T and received the response that the site was blocked due to content. Now that is may normally the case, so the support person on the phone was probably just hazarding a guess, but once the story caught on fire AT&T’s twitter account should have tweeted that taking down 4chan had nothing to do with content. Or at LEAST that they could say they were investigating.

I know it was the weekend, but the story went pretty far, and AT&T is already getting blamed for Google Voice being blocked on the iPhone, so they don't need anymore bad press. If a corporation is taking down a website over the weekend they need to be ready to explain to the public why, otherwise they are just asking for disaster.