As an extension of Proton Sentinel, Proton could develop an application that, for example, based on the MVT (Mobile Verification Toolkit) from the Amnesty International Security Lab, would allow end users to examine their smartphones for signs of infection with spyware such as Pegasus. Proton Sentinel is already specifically aimed at particularly vulnerable people, but only offers the protection of the Proton account. A user-friendly tool to examine your own device at least for known traces of spyware, even without prior technical knowledge, would be another step towards protecting people from surveillance.