It does sound like science fiction but it’s not. The whole Internet we use today is controlled by 14 people, who hold 7 secret keys. Through those keys, they make the internet a better and safer place for everyone.
They meet every three months since 2010 to create new master keys. The security of those keys is as tight as nuclear codes and the meetings can be compared with presidential visits. Every year Internet Corporation for assigned Names and Numbers(ICANN) hold the event. They assign domain names with the unique IPs. To change anything in ICANN’s database at least three keys are needed. Using this database controlling person can send others to any fake website. Because who controls DNS can control the internet.
Therefore ICANN takes security measures so seriously.