Modified Password Guessing Methods Based on TarGuess-I

Table 2

Basic information about our datasets.

Dataset	Web service	When leaked	Total	With PII	Content	Be used
Tianya (Tinya)	Social forum	2011	31,006,590	28,158	User name, PW, E-mail	[12, 14, 38, 39]
Dodonew (Dodon)	E-commerce	2011	16,258,891	21,854	User name, PW, E-mail	[12, 14, 17, 39]
Shengda (Senda)	Game	2011	15,313,334	38,203	User name, PW, E-mail	None
12306 (12306)	Train ticketing	2014	232,884	232,884	PW, E-mail, PII	[16, 17]
Aipai (Aipai)	Video blogs	2016	7,682,232	27,917	User name, PW, E-mail	None
Youku (youku)	Audio visual	2016	92,547,261	134,863	PW, E-mail	None

Hereinafter, each data source is referred as the bold shorthand notations in the brackets.