It means those credentials are in the public domain. If you use that password anywhere else, those accounts are at high risk.
It looks like you’re referring to a which in the world of cybersecurity and data breaches is a text file containing a large collection of username (or email) and password combinations.
In some online communities, "piece" can refer to a specific part of a larger leak or a "vouch" for the file's validity. Why does this matter to you? 135k Combo List.txt
You should immediately change your passwords for important accounts and enable Two-Factor Authentication (2FA) [4].
These lists are usually compiled from various past data breaches across different websites [3, 4]. It means those credentials are in the public domain
Knowing the context (like an alert or a file you found) can help me give you more specific advice.
Hackers use these files for Credential Stuffing . They use automated tools to "stuff" these 135,000 combinations into the login pages of other popular sites (like Netflix, Spotify, or banking portals) to see if people reused the same password [1, 2]. In some online communities, "piece" can refer to
The "135k" indicates that this specific list contains approximately What is a Combo List?