Updated _top_ | Japanese Password List

In today's digital age, online security has become a pressing concern for individuals and organizations alike. One crucial aspect of cybersecurity is password management, and a Japanese password list can play a vital role in protecting online accounts. This article aims to provide an updated overview of Japanese password lists, their significance, and best practices for using them.

: A focused list of common Japanese-specific password variations. Greenwolf/Spray

What (Active Directory, Okta, Auth0, etc.) does your organization use?

Recent data from cybersecurity reports in Japan indicates a shift in how credentials are managed and compromised. japanese password list updated

Japanese password behavior is a unique blend of global bad habits and distinct cultural patterns. While global lists are dominated by sequences like "123456," Japanese users often favor specific cultural references —such as flower names and anime characters—and unique keyboard patterns ResearchGate The Top Offenders (Updated for 2024-2026) According to the latest data from

5. IT管理者・ユーザーが今すぐ導入すべき2つの必須対策

This data is not merely a list of weak passwords—it is a direct window into the most prevalent cybersecurity risks in Japan. Each entry tells a story about common habits and dangerous trends. In today's digital age, online security has become

To avoid appearing on the updated breach lists, users must adopt more complex password structures. Aim for 16 characters or more.

Reliable sources (for research) include:

① パスワードマネージャー（管理ツール）の導入 : A focused list of common Japanese-specific password

In late 2025, a massive update to the was released by security researchers following a "Compilation of Many Breaches" (COMB). The data confirmed that while Japan remains one of the world's most cyber-secure nations, individual habits are often its weakest link. The Predictable Patterns

Implementation tip: Do not block every single entry (e.g., tokyo is too common as a substring). Instead, block exact matches and fuzzy variants (leetspeak, reversed).