It says the effort is to catch people trying to beat the system, but some say it goes too far.
Attorney Kristen Mathews warns to be careful with what you say on social media platforms.
She has concerns the government is pushing the limits of what has historically been considered private.
"There are laws that regulate the government's ability to get a hold of things like credit card transaction history. But those laws have become more permissive in the last several years, particularly after 9-11, and so some might say those laws are no longer in line with the average expectation of privacy," says Mathews.