The tech firm looked at a number of different porn websites and found, at the time of their research, that 40 of the 50 top adult content websites such as Brazzers, Ashley Madison, and AdultFriendFinder had been exposed to data leaks. They found that 'almost a quarter of malware on mobile devices comes from porn websites,' and because 'smartphone operating systems, especially Android, are not as secure as desktops, there are many vulnerabilities that can be easily exploited by hackers.' Wandera, a mobile security tech firm, examined the insecurity of porn sites and of mobile devices and made some alarming conclusions.