Using password lists or cracking tools without explicit permission is illegal in most jurisdictions under computer fraud laws (e.g., CFAA in the US, Computer Misuse Act in the UK).
A passlist, often referred to in the context of password cracking or penetration testing, is essentially a text file (.txt) that contains a list of passwords. This list is used by various tools to attempt to authenticate to a system, network, or application by trying each password in the list. passlist txt 19 portable