What does big data cipher mean? (How Cryptologists Pass Big Data)

The secret-related personnel of big data are determined by technical means and have the same time and space intersection with confirmed cases. Other cities are also called "time and space companions". This situation is usually because your mobile phone signal and the confirmed person's mobile phone signal stay together at the same time and space for more than a certain period of time.

_ Is it risky to be a secret connection?

You need not worry too much. Big data encryption is different from close contacts in the medical sense, and the risk is generally not as great as close contacts or sub-close contacts. However, due to the uncertainty, you still need to cooperate with us to take health management measures of home medical observation.

_ I have not been exposed to confirmed cases. Why is big data secret connection?

When determining the secret connection personnel of big data, it is generally because your mobile phone signal and the diagnosed person's mobile phone signal stay in the same space-time grid for more than a certain period of time.

During this period, it is not excluded that you are in one car and the confirmed case is in another car, and there is no connection; Do not rule out that you are walking on the road, and the confirmed cases are also walking on the road, just passing you by; We don't even rule out that the confirmed case passed by you just before 1 minute, and he happened to sneeze uncomfortably. At that time, it may be 1 13 1 meter away from you, or it may be less than one meter away from you, and you two passed by.

_ When, where and how did I connect?

Because the detection of big data encryption is a range, it is not so accurate. Generally, in the data verification, the staff in our community will not get such accurate information, but it is possible to see which province and city you are from. Even if you ask to see it, we can't generally inquire for you.

_ I really haven't touched it, and I haven't crossed it with a confirmed case. What should I do?

If you insist that there is no possibility of contact, you can do this:

First of all, please be sure to cooperate with health management measures such as home medical observation adopted by community workers to avoid violating relevant laws and regulations because of not cooperating with epidemic prevention and control measures.

Secondly, during the health management measures, we suggest that you do the following:

(1) You can query the published track of confirmed cases through various search engines and public reports. For those who have only arrived at 8 o'clock, connect several points and compare them with your itinerary. If you still think that there is no possibility of intersection after query, you can try the following two items;

② You can consult the epidemic prevention and control departments of the provinces and cities you have been to, and ask whether there may be "big data hidden links" in all your trips. If not, the unit can issue an official letter to the Beijing Municipal Center for Disease Control and Prevention or the Office of the Coordination Mechanism for Joint Prevention and Control in Beijing, which explains your contact information;

(3) You can sort out all the itineraries and supporting documents from the date of investigation to the first 14 days, especially in relevant provinces and cities, and hand them over to the community workers, who will report them to the data group of our district, and we will help you verify them.

Finally, if there is no possibility of contact after the above operation, we will inform the community staff to remove the relevant health management measures for you; If you still think that there are risks in your travel, we will continue to take corresponding health management measures for you and others' health according to the regulations.

_ I haven't even been to that province or city in the last 2 1 day. How can I meet at close range?

This kind of problem may be caused by someone holding a calling card with your name, taking a train, parking for a long time, etc. In this case, you can provide all travel information and supporting documents to the community workers 14 days before the date of investigation, especially three days before the confirmed cases in the relevant provinces and cities, to prove that you have never been to the city.

If you are confirmed to be absent after sorting out your information, community workers will file your information, ask you to sign a letter of commitment and conduct nucleic acid testing, and then identify you as a person with "less contact" and remove your health management measures.