4chan is down, reportedly hacked as of April 15

4chan, the controversial imageboard where users can anonymously post anything and everything, is experiencing downtime as of this morning. Thousands of visitors reported outages on Tuesday, according to DownDetector. (Disclosure: Ziff Davis owns both Mashable and Down Detector.)The current speculation among users is that 4chan was hacked by an attacker taking advantage of an exploit in an outdated version of PHP that the site still ran on, but we have not been able to verify these rumors.4chan h