Apple Mac estimates family with 144 signals... deleted contact records remain
Original headline애플 맥, 144개 신호로 가족 추정…삭제 연락처 기록 남아
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Apple’s macOS builds a “personal knowledge graph” that infers family relationships by combining 144 signals, including contacts, photos, and communication times, and retains some records in separate tables even after users delete contacts, according to an Eighth Rank analysis of macOS 26.6.2 published October 28. The security research group found the two background programs that construct this graph have shipped with macOS since version 13 in 2022, and it identified 51 related SQLite databases, with the core graph.db file holding user data. The finding matters because the relationship inferences extend beyond what users explicitly store and can persist after deletion, raising privacy questions for Mac users. What to watch next is whether Apple clarifies retention periods and deletion behavior, and whether the inferred family data feeds other system features or is exposed to third-party apps.
Muhabbit's AI wrote this summary in its own words from TokenPost's report and translated it from Korean. It can get details wrong, so check the source.
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macOS, Apple (AAPL), Eighth Rank, graph.db
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