The “alternative data” industry, which sells information such as app downloads and credit card purchases to investment groups, is failing to adequately erase personal details before sharing the material, according to several hedge funds.
多家對沖基金表示，向投資集團出售應用(APP)下載、信用卡購買交易等資訊的「另類數據」產業在分享這些資料之前未能充分抹去個人資料。
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