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Off-Facebook activity is a summary of activity that businesses and organizations share with us about your interactions, such as visiting their apps or websites. They use our Business Tools, like Faceb
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Facebook確實會取得站外活動資料，不過是在你使用Facebook帳戶登入網頁或應用程式時才會有這樣的情況，而資料只會用來打造個人化廣告內容，不必過度擔心
References
https://m.facebook.com/help/www/2207256696182627?helpref=platform_switcherhttps://m.facebook.com/help/www/2207256696182627?helpref=platform_switcher
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