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This is the first time that such a thing has been revealed. Earlier reports suggested the existence of millions of malicious apps on the Google PlayStore.
The new warning poses a greater risk as buyers purchase these smart devices and make sure they are free of malicious and harmful applications.
The danger is that some of these pre-installed malware can download other malware in the background, perform advertising scams or even control the host machine (for applications).
According to Google's security report, up to 400 apps can be installed on new phones. Note that many of these applications have not been examined.
Google's Madi Stone, Project Zero's security researcher, presented her team's findings at the Black Hat Vulnerability Detection Conference. "If harmful applications are preinstalled applications, the damage they can cause is greater and that's why we need a lot of badysis, reviews and badysis," she warned.
Despite this warning, the Google team has not revealed any details about the names of the smartphones involved.
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