Apple zoom! It's done so well

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1

Passive disclosure

Do you have this kind of situation , Because of a change of city or other reasons , Need a new mobile phone number .

Big APP Sometimes it's OK , But some small ones APP There may be no function to change the mobile phone number , Sometimes you even forget which accounts you have registered .

That's what happened to me , New mobile phone card , When registering a platform , Prompt that this mobile number has been registered .

Directly select the mobile authentication code to log in , Log on to this platform , I found that this account was used by the last user .

Fortunately, the last user did not leave any privacy on this platform , Otherwise, it will lead to the passive disclosure of users' privacy ？

I haven't changed my mobile number since I returned to Xi'an from Beijing , On the one hand, mobile phone numbers are now commonly used throughout the country , The price is the same .

what's more , There are too many accounts bound to this mobile number , I can't find it all by myself , I simply returned to Xi'an and got another mobile number .

There is no way to solve this problem completely ？

2

Account cancellation

There is one solution , Can greatly improve this problem , Account cancellation .

I don't want to use this platform anymore , You can cancel my account on this platform , If you register with your mobile number again, it will be a new account .

in addition , Account cancellation can also solve other problems , Such as the death of the user .

Actually in 2018 year , The Ministry of industry and information technology has already issued a document , The network platform must support account cancellation , At present, almost all the big factories have supported , But more small and medium-sized app It 's a long story .

So apple made a move , If you don't have this function , from 7 You will not be allowed to go online since January .

Believe that after this rule is started , Can drive a large number of APP Go online one after another to log off , Apple has objectively promoted personal privacy protection .

So this time , I really want to praise apple .

In fact, this is already an apple 2 Delay this policy for the second time , And declare that this is definitely the last deadline, It is impossible to delay .

Why Apple 2 Second delay ？

3

Why is it so difficult ？

What I want to tell you is , Account cancellation is not as simple as you think , Otherwise, Apple's policy will not be postponed twice .

On the one hand, the platform does not want users to log out , Because then they have one less active user , All platforms regard users' data as their own resources .

On the other hand , If the logout function is not considered at the beginning , It's time to change the code later , The issues involved are relatively complex .

in addition , Although some companies have the cancellation function , But logic is very abnormal , You need to prove yourself , Or submit a pile of materials .（ This kind should be scolded ）

As a programmer, you can think about how to realize the logout function ？

If it is a logical deletion , Add a field directly to the user table , Mark user logout , I guess that's what most companies do .

If it must be physically deleted , You need to delete the data in the user table , Because the user table is associated with N Multiple tables , The corresponding relationships may need to be deleted .

But it's not enough , Because the database has backup , You may also need to go to the History Library 、 Delete the corresponding user information from the backup data , This workload is a little big .

Of course, there are other issues involved , For example, the user deleted , Whether the content generated on the platform should be deleted , Other users of the platform @ What should his temporal logic do , For example, how to deal with the account with money ...

Yes, of course , There must be some difficulty , But these should not be excuses for inaction , I hope that major Android manufacturers in China can follow up with this function .

Give the user the right to choose ！