Nintendo Server Hacked

Nintendo, a Japanese game company which has became the victim by the hackers.Nintendo is the leading games maker nowadays. Nintendo server in US has been attacked few weeks ago by the hackers. Hacking of different companies has been attacked recently as Sony was hacked which caused a great loss the company. As per the company spokesman there was no any loss for the company and the costumer datas. Gmail account hacking in the China has come to the news but now Nintendo has been attacked. Hackers are targeting the company server, websites, and important consumer datas while hacking. Now how does other companies protect their server,websites and database from the hackers.