: Birth years, specific dates (e.g., 1990 , 2024 ), or phone number fragments.

: A massive collection of multiple types of lists, including 10k-most-common.txt and default-passwords.txt .

: Tools like Hashcat or John the Ripper use these text files as dictionaries to attempt to crack hashes .

: The industry standard, containing over 14 million passwords leaked from the 2009 RockYou breach .