On August 23, following an update to Apple’s XProtect system—one of the security features built into macOS—some Mac users began to see security alerts about some of their apps, claiming that they “will damage your computer,” and offering users the option to “report malware to Apple.” This has led to much confusion online, and to an influx of requests in our support system asking about this malware. The most common so far has been from an app named ReceiverHelper.

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