This contains some really interesting info. Basically someone (i.e. a government, likely the Dutch) managed to install malware on a bunch of the phones. Each p

This contains some really interesting info. Basically someone (i.e. a government, likely the Dutch) managed to install malware on a bunch of the phones. Each phone only communicates with other phones in the network so once they got one zero-day and put malware on a phone and could spread it, it could spread very quickly.