Ad-tech company was a delivery system for "mercenary spyware"

An Israeli ad-tech company called Discover-Tech exploited security vulnerabilities in major advertising platforms including Google and Facebook to distribute spyware and zero-click malware to targeted individuals without their knowledge or interaction. The spyware used persistent user identifiers maintained by these tech giants to serve malicious code that compromised devices, targeting individuals including Al Jazeera workers, according to Citizen Lab's investigation.