After faking his death, Finch uses a backdoor in the Machine that sends him the Social Security number of a person that will be involved in a crime (though it is unknown if the person is a victim or perpetrator).
After faking his death, Finch uses a backdoor in the Machine that allows him to access the list of the "irrelevant" crimes, which was installed by Ingram. To avoid attention, Finch can only access the Social Security number of a person involved in the crime (though it is unknown if is a victim or perpetrator).