[5] The site came to an end when the legal battles that isoHunt's founder had been in for years with conglomerates of IP rights holders over allegations of copyright infringing came to a head.

On February 23, 2006, the Motion Picture Association of America (MPAA) issued a press release stating they were suing isoHunt for copyright infringement.

The site was shut down on October 21, 2013, two days earlier than originally planned, leaving a farewell message from Gary Fung that also explained that the rush was to prevent backup activity – possibly the one reported to have been started by ArchiveTeam.

On December 21, 2009, the court granted the MPAA's motion for summary judgment, finding isoHunt and Fung liable for copyright infringement on the theory of inducement.

The court found that IsoHunt had not presented any satisfactory evidence to counter these claims, and at its core it was merely an "evolutionary modification" of Napster and Grokster, two P2P systems that had previously been held liable for inducing copyright infringement.

[14][15] On September 8, 2008, Gary Fung announced on the isoHunt front page[16] that he had made a preemptive move against an impending lawsuit from the CRIA by filing a petition to the Supreme Court of British Columbia.

After a major hardware upgrade,[18] the site resumed normal operation by January 22, 2007, although experiencing several brief periods of subsequent downtime due to server changes.

On July/August 2013, Federation of the Italian Music Industry obtained an order from the Court of Milan which demands ISPs to block isoHunt's domain and IP address.

The settlement terms included a $110 million judgment against isoHunt and its owner, Gary Fung, ending a seven-year legal battle over its operations.

[21] The site shut down on 21 October 2013, 2 days earlier than the announced date, leaving a note from Gary Fung and a link to a YouTube "trailer for the movie Terminator Salvation" that is actually a Rickroll.

Because as the Terminator would say with a German accent, I'll be backkk.In the beginning of 2007, isoHunt restructured its server setup and bought mostly new hardware for the cluster that operates the site.

The cluster had a total of 34 AMD Opteron cores, 70 GB in RAM and 30 hard drives ranging from SATAs to 15,000 rpm SCSIs.

[27] On December 13, 2014, just 4 days after a raid by Swedish police took ThePirateBay.se offline, the isoHunt.to team launched a new website, OldPirateBay.org, mirroring the contents of a recent snapshot of The Pirate Bay.