V erizon temporarily blocked traffic from some Web sites affiliated with the 4chan online forum on Monday after finding that some affiliate sites were apparently launching network attacks. [5]

Last summer, due to a DDOS attack emanating from IP addresses connected to 4chan, AT&T temporarily blocked access to 4chan... without giving a full explanation for why. [3]

The reported block is not affecting users of Verizon's home services, such as DSL or FIOS, and is only actively dropping connections from port 80, "no other subdomain/IP/port is affected". Memo to Verizon Wireless: "Thou shall not agitate 4chan" is one, of very few, unwritten rules of the internet. [2]

"Our network security system found traffic from some of the 4chan web sites that were potentially disruptive of the Verizon Wireless network and could affect our customers' use of their services," Jeffrey Nelson, a spokesman for the wireless carrier, said. Christopher Poole, 4chan's founder, said in a blog post Sunday that visitors who were Verizon Wireless customers reported problems reaching the site's image boards. [4]

As it turned out, the website had only been temporarily blocked as AT&T worked to resolve a distributed denial of service attack. [1]