Governments must impose a global moratorium on the international spyware trade or face a world in which no mobile phone is safe from state-sponsored hackers, Edward Snowden has warned in the wake of revelations about the clients of NSO Group.
Snowden, who in 2013 blew the whistle on the secret mass surveillance programmes of the US National Security Agency, described for-profit malware developers as “an industry that should not exist”.
He made the comments in an interview with the Guardian after the first revelations from the Pegasus project, a journalistic investigation by a consortium of international media organisations into the NSO Group and its clients.
Quick Guide
What is in the Pegasus project data?
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What is in the data leak?
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. The data also contains the time and date that numbers were selected, or entered on to a system. 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. More than 80 journalists have worked together over several months as part of the Pegasus project. Amnesty’s Security Lab, a technical partner on the project, did the forensic analyses.
What does the leak indicate?
The consortium believes the data indicates the potential targets NSO’s government clients identified in advance of possible surveillance. 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 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. 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.
What did forensic analysis reveal?
Amnesty examined 67 smartphones where attacks were suspected. Of those, 23 were successfully infected and 14 showed signs of attempted penetration. For the remaining 30, the tests were inconclusive, in several cases because the handsets had been replaced. Fifteen of the phones were Android devices, none of which showed evidence of successful infection. However, unlike iPhones, phones that use Android do not log the kinds of information required for Amnesty’s detective work. Three Android phones showed signs of targeting, such as Pegasus-linked SMS messages.
Amnesty 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. Citizen Lab also conducted a peer review of Amnesty’s forensic methods, and found them to be sound.
Which NSO clients were selecting numbers?
While the data is organised into clusters, indicative of individual NSO clients, it does not say which NSO client was responsible for selecting any given number. NSO claims to sell its tools to 60 clients in 40 countries, but refuses to identify them. By closely examining the pattern of targeting by individual clients in the leaked data, media partners were able to identify 10 governments believed to be responsible for selecting the targets: Azerbaijan, Bahrain, Kazakhstan, Mexico, Morocco, Rwanda, Saudi Arabia, Hungary, India, and the United Arab Emirates. Citizen Lab has also found evidence of all 10 being clients of NSO.
What does NSO Group say?
You can read NSO Group’s full statement here. The company has always said it does not have access to the data of its customers’ targets. Through its lawyers, NSO said the consortium had made “incorrect assumptions” about which clients use the company’s technology. It said the 50,000 number was “exaggerated” and the list could not be a list of numbers “targeted by governments using Pegasus”. The lawyers said NSO had reason to believe the list accessed by the consortium “is not a list of numbers targeted by governments using Pegasus, but instead, may be part of a larger list of numbers that might have been used by NSO Group customers for other purposes”. After further questions, the lawyers said the consortium was basing its findings “on misleading interpretation of leaked data from accessible and overt basic information, such as HLR Lookup services, which have no bearing on the list of the customers’ targets of Pegasus or any other NSO products … we still do not see any correlation of these lists to anything related to use of NSO Group technologies”.
What is HLR lookup data?
The term HLR, or home location register, refers to a database that is essential to operating mobile phone networks. Such registers keep records on the networks of phone users and their general locations, along with other identifying information that is used routinely in routing calls and texts. Telecoms and surveillance experts say HLR data can sometimes be used in the early phase of a surveillance attempt, when identifying whether it is possible to connect to a phone. The consortium understands NSO clients have the capability through an interface on the Pegasus system to conduct HLR lookup inquiries. It is unclear whether Pegasus operators are required to conduct HRL lookup inquiries via its interface to use its software; an NSO source stressed its clients may have different reasons – unrelated to Pegasus – for conducting HLR lookups via an NSO system.
NSO Group manufactures and sells to governments advanced spyware, branded as Pegasus, that can secretly infect a mobile phone and harvest its information. Emails, texts, contact books, location data, photos and videos can all be extracted, and a phone’s microphone and camera can be activated to covertly record the user.
The consortium analysed a leaked dataset of 50,000 phone numbers that, it is believed, were identified as belonging to persons of interest to NSO’s customers. Forensic analysis of a sample of the mobile phones found dozens of cases of successful and attempted Pegasus infections.
NSO Group says it takes ethical considerations seriously, is regulated by the export control regimes of Israel, Cyprus and Bulgaria and only sells to vetted government clients. But its customers have included repressive regimes, including Saudi Arabia, the United Arab Emirates and Azerbaijan.
Speaking in an interview with the Guardian, Snowden said the consortium’s findings illustrated how commercial malware had made it possible for repressive regimes to place vastly more people under the most invasive types of surveillance.
For traditional police operations to plant bugs or wiretap a suspect’s phone, law enforcement would need to “break into somebody’s house, or go to their car, or go to their office, and we’d like to think they’ll probably get a warrant”, he said.
But commercial spyware made it cost-efficient for targeted surveillance against vastly more people. “If they can do the same thing from a distance, with little cost and no risk, they begin to do it all the time, against everyone who’s even marginally of interest,” he said.
“If you don’t do anything to stop the sale of this technology, it’s not just going to be 50,000 targets. It’s going to be 50 million targets, and it’s going to happen much more quickly than any of us expect.”
Part of the problem arose from the fact that different people’s mobile phones were functionally identical to one another, he said. “When we’re talking about something like an iPhone, they’re all running the same software around the world. So if they find a way to hack one iPhone, they’ve found a way to hack all of them.”
He compared companies commercialising vulnerabilities in widely used mobile phone models to an industry of “infectioneers” deliberately trying to develop new strains of disease.
“It’s like an industry where the only thing they did was create custom variants of Covid to dodge vaccines,” he said. “Their only products are infection vectors. They’re not security products. They’re not providing any kind of protection, any kind of prophylactic. They don’t make vaccines – the only thing they sell is the virus.”
Snowden said commercial malware such as Pegasus was so powerful that ordinary people could in effect do nothing to stop it. Asked how people could protect themselves, he said: “What can people do to protect themselves from nuclear weapons?
“There are certain industries, certain sectors, from which there is no protection, and that’s why we try to limit the proliferation of these technologies. We don’t allow a commercial market in nuclear weapons.”
He said the only viable solution to the threat of commercial malware was an international moratorium on its sale. “What the Pegasus project reveals is the NSO Group is really representative of a new malware market, where this is a for-profit business,” he said. “The only reason NSO is doing this is not to save the world, it’s to make money.”
He said a global ban on the trade in infection vectors would prevent commercial abuse of vulnerabilities in mobile phones, while still allowing researchers to identify and fix them.
“The solution here for ordinary people is to work collectively. This is not a problem that we want to try and solve individually, because it’s you versus a billion dollar company,” he said. “If you want to protect yourself you have to change the game, and the way we do that is by ending this trade.”
NSO Group said in a series of statements that it rejected “false claims” about the company and its clients, and said it did not have visibility over its clients use of Pegasus spyware. It said it only sold the software to vetted government clients, and that its technology had helped to prevent terrorism and serious crime.
Following the launch of the Pegasus project, Shalev Hulio, the founder and chief executive of NSO, said he continued to dispute that the leaked data “has any relevance to NSO”, but added that he was “very concerned” about the reports and promised to investigate them all. “We understand that in some circumstances our customers might misuse the system,” he said.
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