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'Pegasus takes advantage of this functionality to silently infect the device.' Many apps will automatically create a preview or cache of links in order to improve the user experience,' Schless said.

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'Pegasus is delivered via a malicious link that's been socially engineered to the target, the vulnerability is exploited and the device is compromised, then the malware communicated back to a command-and-control (C2) server that gives the attacker free reign over the device.

It can now be deployed as a zero-click exploit, which means that the target user doesn't even have to tap a malicious link for the surveillanceware to be installed, Schless explained, adding that while the malware has adjusted its delivery methods, the basic exploit chain remains the same. Hank Schless, senior manager of security solutions at Lookout, said the tool has continued to evolve and take on new capabilities. In 2016, cybersecurity company Lookout worked with Citizen Lab to discover Pegasus. 'End-to-end encryption keeps everyone safe, especially those from vulnerable communities - like journalists, activists, and LGBTQ+ community members in more conservative countries.' In a longer report about the vulnerability, Citizen Lab researchers said that it is the 'latest in a string of zero-click exploits linked to NSO Group.' Their security needs to be a *top* priority.' They are on every device and some have a needlessly large attack surface. Popular chat apps are the soft underbelly of device security. Discovery is inevitable byproduct of selling spyware to reckless despots. But here we are.again: their exploits got discovered by us because they were used against an activist. 'NSO Group says that their spyware is only for targeting criminals and terrorists.

Victim sees *nothing,* meanwhile Pegasus is silently installed and their device becomes a spy in their pocket,' Scott-Railton explained.

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Thing is, the '.gif' files.were actually Adobe PSD & PDF files.and exploited Apple's image rendering library. A recent a re-analysis yielded something interesting: weird looking '.gif' files. 'Back in March my colleague Bill Marczak was examining the phone of a Saudi activist infected with Pegasus spyware.

They found that the vulnerability has been in use since at least February. John Scott-Railton, a senior researcher at Citizen Lab, spoke out on Twitter to explain what he and Citizen Lab senior research fellow Bill Marczak found and reported to Apple.