These are the default regular expressions and their respective replacements. These expressions are fixed and come with the plugin.

Description	Regexp	Replacement	Sample
Masks http/https mail addresses	(https?:\/\/\S*):\S*@(\S*\.\S*)	$1:********@$2	https://my:s3cr3t@3x4mpl3.c0m -> https://my:********@3x4mpl3.c0m
Masks passwords	password=\S*	password=********	mvn -password=s3cr3t%20 -> mvn -password=********