tag: personal number

Social Security and Tax Number System > Information Collaboration Platform Technology Working Group
identity Public policy law

Natsuka C: Cabinet Secretariat > Social Security and Tax Number System > Personal Information Protection Working Group and Information Collaboration Platform Technology Working Group (2011)

Nat 2025-06-18 No Comments

I suddenly found something that brought back a lot of memories. It was the minutes of the Information Collaboration Platform Technology Working Group that had been held since the beginning of 2011. You can access it here. The Personal Information Protection Working Group was established to consider matters related to the personal information protection mechanisms in the social security and tax number system and the national ID system (hereinafter referred to as "both systems").

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Figure 2. Identifier risks
identity Your Privacy

My Number and Privacy: Identifiers and Excess Risk

Nat 2012-10-01 5 Comments

Last time, in "My Number and Privacy: Requirements for Identifiers," I wrote the following. Next, as a hypothetical example, let's consider a common number for taxes and social security (including pensions). This would need to meet the requirements of both the basic pension number and the taxpayer number. In other words, the "long period" required for pension management and the tax...

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Usagi
identity Security Your Privacy Politics

My Number and Privacy: Requirements for Identifiers

Nat 2012-08-09 Comment

Recently, it seems that My Number has been getting more coverage in various media outlets [1]. Leaving aside the possibility that it may be too late, I think it's better than nothing. Ideally, I should point out any issues I have about each article, but unfortunately I'm very busy...

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Use code conversion to link different "numbers" as needed
identity Your Privacy Politics

Regarding storage and linking of the common number/My Number

Nat 2012-03-01 3 Comments

First, let's take a look at the following illustration from the Cabinet Secretariat regarding the My Number. The "number" is the My Number. In this illustration, the My Number ("number") is stored in multiple places, such as information holding agency A and information holding agency B. This is something that just doesn't feel right. Because this is not the kind of information sharing platform that we use.

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