A compromised Chrome extension with 7,000 users was updated to deploy malware, strip security headers, and steal cryptocurrency wallet seed phrases.
Security researchers say exploits used by governments to hack into iPhones have been found to be used by cybercriminals. They warned of an emerging market for "secondhand" exploits.
A highly sophisticated set of iPhone hijacking techniques has likely infected tens of thousands of phones or more. Clues suggest it was originally built for the US government.