This Japanese data reflects a global problem. The most common password worldwide in 2025 was, yet again, "123456", and an astonishing 25% of the top 1,000 global passwords consist solely of numbers. However, Japan stands out for the prevalence of "admin" as its number one, hinting at a unique combination of legacy default settings and a high number of unconfigured IoT devices, alongside the strong cultural tendency to use names and pop culture references.
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).
Add a localized, up-to-date password resource for Japanese-speaking users that helps them create, evaluate, and manage strong, culturally aware passwords. The feature provides a curated list of commonly used weak passwords in Japan, localized guidance for secure password creation, education on current attacker patterns, and integrated checks in password creation and breach-detection flows.
MFA, also known as two-factor authentication (2FA), requires a second verification code from an authenticator app or SMS after entering your password. Even if a password is stolen, the attacker cannot access your account without also having this second factor, which is typically your smartphone. It is the single most effective defense against credential stuffing attacks. japanese password list updated
With large-scale leaks like "RockYou2024" exposing over 10 billion records, weak passwords are more vulnerable than ever. Experts from Kaspersky and ZDNet recommend the following: New Year's resolutions for a cybersecure 2025 - Kaspersky
The "updated" Japanese password list is no longer just a collection of numbers and Romaji; it is a battleground between cultural memory and cryptographic necessity. While Goroawase remains a unique linguistic trait, its use in security is a critical vulnerability that modern Japanese systems are actively phasing out in favor of global secure storage standards.
Ingest the data into your within your IAM solution (e.g., Okta, Azure AD, or Ping Identity). This Japanese data reflects a global problem
: Never store credentials in an unencrypted format.
Given these risks, moving toward better password hygiene is essential. Here are actionable steps you can take to secure your digital life.
: Combinations like "Fuyu2017" (Winter 2017) or month-based strings like "1Tsuki2016" (January 2016) are common variations. Implementation tip: Do not block every single entry (e
Credential stuffing relies on automation to test lists of leaked usernames and passwords across various websites. When attackers utilize an updated, region-specific list, their success rate spikes dramatically for several reasons. Attack Vector Global Wordlist Performance Updated Japanese Wordlist Performance Low efficiency; misses cultural nuances. High efficiency; captures localized user habits. Bypassing Basic Filters Caught by standard "common password" blocks. Bypasses filters that only screen English words. Account Takeover (ATO) Rate Stagnant or declining. Exponentially higher on Japanese domains ( .jp ).
Despite increasing awareness of cyber threats, many Japanese users still favor short numerical sequences that can be cracked in less than a second. The following list represents the most frequent findings in recent leak analyses, including major reports like the NordPass Top 200 and local Japanese data studies. Crack Time (Approx.) < 1 second 123456 < 1 second password < 1 second 1234 < 1 second 1qaz2wsx < 1 second 12345 < 1 second 303030 < 1 second 1111 < 1 second admin < 1 second qwerty < 1 second Cultural & Keyboard Patterns in Japanese Credentials
Japan, being a technologically advanced country, has a significant online presence. With the rise of digital services, online transactions, and social media, the need for secure passwords has become more pressing than ever. A Japanese password list is essential for several reasons: