在旧系统中，个人信息的更新同样是直接写入到数据库。
Profile updates were also written directly to the database in the old system.
例如人们个人信息的数据会随时间而贬值。
Data, such as people's personal information, can lose value over time.
如何有效的保护手机用户的个人信息及数据安全，成为目前社会普遍关注的问题。
The protection of user's personal information and data security has become an international issue.
所有数据都是匿名收集的，个人信息是无法识别的。
All data is anonymous and aggregated, they say, meaning individual consumers cannot be identified.
所有数据都是匿名收集的，个人信息是无法识别的。
All data is anonymous and aggregated, they say, meaning individual consumers cannot be identified.
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