Researchers say cyberspies exploited security vulnerabilities to plant spyware on Apple iPhones when users merely visited a small group of malware-infected websites.
Google security researchers say thousands of iPhone users were exposed over more than two years before Apple issued a patch. They do not say who was behind the cyberespionage but experts say it has the hallmarks of a nation-state effort.
Google researcher Ian Beer says in a blog posted late Thursday that the discovery should dispel any notion that it costs a million dollars to successfully hack an iPhone.
Apple did not immediately respond to a request for comment.