• Renewed the blog system

    I have revamped this blog. The appearance is almost the same, but I have introduced an English version with multilingual support (i18n) and changed the infrastructure.

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  • I wrote a book called "All About Passkeys."

    I have written a book called "All About Passkeys" (https://gihyo.jp/book/2025/978-4-297-14653-5). I would like to give you a brief introduction to the contents of this book, which will be released on January 28th.

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  • Tips for using your passkey

    Recently, I've seen a lot of people complaining about passkeys being difficult to use. I've also seen several posts from people who have trouble logging in to services they want to use because they can't find the passkeys they thought they had created.

    So in this blog post, I would like to consider why this happens, how to avoid such situations, what measures users can take, and what service providers can do to reduce the number of users who feel this way.

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  • The basics of passkeys and clearing up misconceptions surrounding them

    2023 has undoubtedly become the "first year of passkeys." With so many services supporting passkeys, 2024 is likely to be the year when passkeys finally become widespread.

    In this article, we will review the basics of passkeys and explain some common misconceptions about passkeys.

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  • What is a passkey and its challenges?

    Passkeys are a new authentication method that is resistant to phishing and easy to use even for non-tech-savvy users, and are said to eventually replace passwords. In this article, we'll summarize the basics of passkeys and what they mean for the future of the web.

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