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Ubuntu Forums
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<p>The Ubuntu Forums is the official <a href="/facts/Internet_forum/bRuqfQfN">forum</a> for the <a href="/facts/Ubuntu_(operating_system)/0WDd7hkb">Ubuntu</a> operating system. </p><p>As of May 2022, The Ubuntu Forums has 2.1 million registered members and more than 2.2 million threads. The Ubuntu Forums currently runs on the forum software <a href="/facts/Vbulletin/aR1MMtpd">vBulletin</a>. </p><p>On July 20, 2013 the site was compromised, with attacker(s) both defacing the site and gaining access to "all user email addresses and hashed passwords" </p><p>The site was compromised once again on July 15, 2016. "Usernames, email addresses and IPs for 2 million users" were compromised but 'no active passwords' were accessed. </p>