An attack that can fully, remotely take over a victim's computer through his or her Safari or Internet Explorer browser, for instance, fetches a price of as much as $50,000. For the harder target of Google Chrome, Zerodium's price rises to $80,000. Remote exploits that entirely defeat the security of an Android or Windows Phone device go for as much as $100,000. And an iOS attack can earn a hacker half a million dollars, by far the highest price on the list.