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.
多家对冲基金表示，向投资集团出售应用(APP)下载、信用卡购买交易等信息的“另类数据”产业在分享这些资料之前未能充分抹去个人资料。
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