mediadefender.comは安全ですか？

Spies on people's computers through fake torrents and breaking into P2P networks to find IP addresses. Also has been implicated in multiple DDoS attacks, including the highly controversial Revision3 attack. Has been revealed through leaked emails to incite hackers to DDoS various individuals, torrent-related websites, and even corporations that have no involvement with piracy.

Pathetic, reprehensible company. They deface filesharing networks and invade privacy to track them. They have been known to attack sites via Denial of Service. The entertainment industry is basically their pimp. They are a law-breaking company that is not to be trusted, therefore their site should be treated as such.

While the site may annoy people who file share but what you have to remember is that filesharing is illegal and all that they are doing is protecting company's property while they may have used some unethical practises they do not host viruses or anything that means it has to be red.

They attempt to exploit security holes in websites to shut down P2P trackers and employ DoS attacks against websites which do not host open trackers. While I do not use P2P technologies (only to download linux distros at least), the methods employed by this company are serious and should probably be considered illegal. Pirates aren't hurting any industry, but companies like this take the money from big corporations to attack the people using P2P. They also go after those who download LEGALLY on P2P, such as the Touhou music collections WHICH ARE UPLOADED BY THE PRODUCER.