Investigators have revealed that targets of high-tech spying in Mexico included an international group of experts backed by the Organization of American States who had criticized the government's investigation into the disappearance of 43 students. Previous investigations by the internet watchdog group Citizen Lab found that the spyware had been directed at journalists, activists and opposition politicians in Mexico. But targeting foreign experts operating under the aegis of an international body marks an escalation of the scandal. The experts had diplomatic status, making the spying attempt even graver. The spyware, known as Pegasus, is made by the Israel-based NSO Group, which says it sells only to government agencies for use against criminals and terrorists. It turns a cellphone into an eavesdropper, giving snoopers the ability to remotely activate its microphone and camera and access its data. The spyware is uploaded when users click on a link in email messages. Citizen Lab said the spyware attempts against the international experts occurred in March 2016 as the group was preparing its final, critical report on the government investigation into the disappearances. The 43 students were detained by local police in the city of Iguala on 26 September 2014, and were turned over to a crime gang. Only one student's remains have been identified. The experts criticized the government's conclusions, saying ... that government investigators had not looked into other evidence.