India, Dec. 16 -- Washington The Trump administration's expanded social media vetting for all H-1B and H-4 dependent visa applications to the United States came into effect on Monday following an announcement last week.

The new "online presence reviews" have been put into place to screen applicants who may pose a national security risk to the United States.

This follows from an announcement in June when the Trump administration announced social media checks for applicants in the F, M and J student and exchange visitor visa categories. The expansion in social media vetting was linked to the rescheduling of a number of visa appointments for H-1B visa holders and H-4 dependent visa holders in India due to "resource availability".

"If you ...