Apple Uses User Reports To Improve Spam

Apple explains how user reports of suspicious emails, iMessages and FaceTime calls train its defenses and improve ecosystem security. Reports to iCloud train server-side machine learning in real time, can trigger domain takedowns when multiple users flag the same sender, and enable network-level blocking of flagged iMessage/FaceTime accounts.
Scoring Rationale
Explains Apple's practical spam-reporting defenses and ML pipeline, but offers limited new technical detail and secondary sourcing.
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