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  3. Anyone can track a Venmo user’s purchase history and collect a detailed profile — including their drug deals, eating habits and

Anyone can track a Venmo user’s purchase history and collect a detailed profile — including their drug deals, eating habits and

admin2019-05-04  111
问题    Anyone can track a Venmo user’s purchase history and collect a detailed profile — including their drug deals, eating habits and arguments — because the payment app【C1】______default privacy protections.
   This was the【C2】______of a Berlin-based researcher, Hang Do Thi Due, who【C3】______the more than 200 million public Venmo transactions made in 2017. Her aim was to【C4】______the privacy risk from using a seemingly【C5】______peer-to-peer app.
   By【C6】______the data through a public application programming interface, Do Thi Due was able to see the names of every user who hadn’t changed their settings to【C7】______. along with the dates of every【C8】______and the message sent with the payment. This【C9】______her to explore the lives of unsuspecting Venmo users and learn "an alarming amount about them."
   The【C10】______state for transactions when a user signs up to the app is "public," which means they can be seen by anyone on the【C11】______. Users can change this to "private" by【C12】______to the app’s settings,【C13】______it’s not clearly highlighted during sign-up.
   Do Thi Due showcases the level of personal date【C14】______through Venmo through her project website "Public by Default," named because when anyone makes a【C15】______through the app, it is public【C16】______that person has locked down their privacy settings. Here she has accessed in on five individual users, including a man who sells cannabis in Santa Barbara and a pair of【C17】______who pass money between each other accompanied by flirting, arguing, apologies and threats.
   In the case of the cannabis seller, Do Thi Due could see 920 incoming payments throughout 2017,【C18】______by messages including words like "CBD" (an abbreviation of cannabidiol, one of the active ingredients in cannabis) "delivery," "order" or "emojis". She could also see that the dealer appeared to【C19】______a second person, making 19 payments to them throughout the year with【C20】______to cannabis sales.
【C16】
选项 A、why
B、where
C、since
D、unless
答案D
解析 此空所在处的大意是：这样命名是因为当有人通过应用程序支付时，______选择私人设置否则信息是公开的。选项[A]why意为“为什么”； [B]where意为“哪里”； [C]since意为“自从”； [D]unless意为“除非”。只有unless最符合句意，故为答案。
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