A Japanese password list is a dataset—often used by penetration testers and unfortunately by cybercriminals—that contains the most frequently used passwords among Japanese internet users. Unlike generic English lists (e.g., RockYou or SecLists), these lists incorporate:
Most common password patterns in Japan reflect a preference for simple numeric sequences and words in Romaji (Japanese written with Latin characters), as Japanese input systems typically do not allow native scripts like Kanji or Hiragana for password entry. Common Characteristics of Japanese Passwords japanese password list