"Shield Bureau" has a wide range of responsibilities, behind Alibaba's huge trading system, to protect the rights and interests of users as a solid shield.

The main categories include the following: protection of intellectual property rights, that is, counterfeiting; protection of account security, mainly to prevent false registration; protection of transaction security, mainly to prevent transaction fraud, malicious bad reviews, extortion and speculation; protection of information security and prohibited sales checking; protection of privacy to prevent the leakage of information; protection of data security; big data risk control and so on.

Ali security all vice president Du Yuejin said: "Ali security to do to protect the user's most concerned about the security - including shopping, trading, payment, infringement, finance, anti-data leakage, anti-fraud, anti-counterfeiting and other full transaction chain; is committed to building the application layer of the security ecosystem. Facing the end user is also facing the industry enterprises, covering the terminal through the cloud, through multi-dimensional big data to build an integrity system."