The Reuters news agency said it spoke to “people familiar” with the investigation into the spy scandal, which it says was launched “earlier this year”.

What is interesting about the case, says Reuters, is that a “significant” proportion of the hundreds of WhatsApp users who were targeted by governments worldwide are “high profile” officials. The victims reportedly serve in various government agencies, including the armed forces, of at least 20 countries on five continents. They allegedly include politicians, diplomats, military officers, academics, journalists, lawyers and human-rights activists in countries such as the United States, India, Mexico, Bahrain, the United Arab Emirates and Pakistan.

WhatsApp alleges that the spy activities against these individuals were enabled by NSO Group, an Israeli software development company that specializes in surveillance technologies. The Facebook-owned company alleges that NSO Group specifically developed a hacking platform that allows its users to exploit flaws in WhatsApp’s servers in order to gain access to the telephone devices of targeted individuals. At least 1,400 of WhatsApp’s users had their telephones compromised between April 29 and May 10, 2019, says WhatsApp.

NSO Group, whose clientele consists exclusively of government agencies worldwide, denies any wrongdoing. The company claims that its products are designed to “help governments catch terrorists and criminals”, says Reuters. But WhatsApp and Citizen Lab, a research initiative based at the University of Toronto, which worked with WhatsApp on the NGO Group case, claim that at least 100 of the 1,400 victims were news journalists, political activists and the lawyers who defend them. There was no overlap between ongoing criminal or terrorism investigations and those targeted by NSO Group’s software, they claim.

The names on the list of espionage victims are not known. But Reuters said that, depending on how high-profile the victims are, the WhatsApp-NSO Group spy scandal could have worldwide political and diplomatic consequences.