You may be required to disclose social media accounts as part of your Green Card application and interview. Forms and procedures are being continually revised.  It’s always important to be careful about what you post on social media if you wish to live and work in the US. The consular officer at your interview will evaluate all the information you've supplied to determine your eligibility for a Green Card. So if any part of your application is at odds with the Green Card requirements (including fraudulent answers and malicious intent), you may be denied. Or worse, you could face legal strife with US authorities. So be smart about what you post online and be honest in your Green Card application. If you have specific questions about your online footprint, speak to an immigration specialist directly about your situation.