Which NSO clients were selecting numbers? Citizen Lab also conducted a peer review of Amnesty’s forensic methods, and found them to be sound. Three Android phones showed signs of targeting, such as Pegasus-linked SMS messages.Īmnesty shared “backup copies” of four iPhones with Citizen Lab, a research group at the University of Toronto that specialises in studying Pegasus, which confirmed that they showed signs of Pegasus infection.

However, unlike iPhones, phones that use Android do not log the kinds of information required for Amnesty’s detective work. Fifteen of the phones were Android devices, none of which showed evidence of successful infection. For the remaining 30, the tests were inconclusive, in several cases because the handsets had been replaced. Of those, 23 were successfully infected and 14 showed signs of attempted penetration. However, forensic examinations of a small sample of mobile phones with numbers on the list found tight correlations between the time and date of a number in the data and the start of Pegasus activity – in some cases as little as a few seconds.Īmnesty examined 67 smartphones where attacks were suspected. The presence in the data of a very small number of landlines and US numbers, which NSO says are “technically impossible” to access with its tools, reveals some targets were selected by NSO clients even though they could not be infected with Pegasus. While the data is an indication of intent, the presence of a number in the data does not reveal whether there was an attempt to infect the phone with spyware such as Pegasus, the company’s signature surveillance tool, or whether any attempt succeeded. The consortium believes the data indicates the potential targets NSO’s government clients identified in advance of possible surveillance. Amnesty’s Security Lab, a technical partner on the project, did the forensic analyses. More than 80 journalists have worked together over several months as part of the Pegasus project. Forbidden Stories, a Paris-based nonprofit journalism organisation, and Amnesty International initially had access to the list and shared access with 16 media organisations including the Guardian. The data also contains the time and date that numbers were selected, or entered on to a system. The data leak is a list of more than 50,000 phone numbers that, since 2016, are believed to have been selected as those of people of interest by government clients of NSO Group, which sells surveillance software.

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