Aim to spread 60% of COCOA, the Japanese version of the “contact confirmation app”

Contact confirmation app released from June 19th.
Utilizing the API jointly developed by google and Apple, the smartphone’s Bluetooth communication function is used to send notifications to those who are likely to have a heavy contact with the infected person.
Since the effect cannot be exhibited unless the number of users is large, it seems that the countries that have introduced the system are not yet popular.
Since it is an enforcement version for one month, many people will wait for a while to see if there is any problem.

Do you use the Japanese version of the “contact confirmation app”? Diagnose the security aspect (explain Q&A including specifications)
https://media.dglab.com/2020/06/18-covid19app-01/

Who made the Japanese version of the “contact confirmation app” that notifies you of corona contact? …Challenging “60% spread” (development)
https://www.businessinsider.jp/post-214726

Germany’s new Corona contact notification app achieves 6.5 million downloads in one day after release
https://japan.cnet.com/article/35155527/

“Corona warning app” released in Germany, how is it accepted locally
https://www.itmedia.co.jp/news/articles/2006/17/ news071.html

UK also turns to adopting API of Apple and Google with corona tracking app “Because Apple will not change system”
https://www.itmedia.co.jp/news/articles/2006/19/ news058.html

Contact tracking app using Google and Apple APIs, first in Switzerland
https://www.businessinsider.jp/post-213698

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