In a March 12 letter, Sen. Jeff Sessions (R-AL) had asked SSA: “How many individuals have applied for SSNs as a result of the June 15, 2012, memorandum issued by Homeland Security Secretary Janet Napolitano entitled ‘Exercising Prosecutorial Discretion with Respect to Individuals Who Came to the United States as Children'?”
(See SSA Letter.pdf)
“By the end of fiscal year (FY) 2014, we had issued approximately 541,000 original SSNs to individuals authorized to work under the 2012 Deferred Action for Childhood Arrivals (DACA) policy since its inception,” Colvin said in her April 10 response.
The 2012 memo acknowledges that it “confers no substantive right, immigration status or pathway to citizenship,” adding that such benefits can be conferred “only [by] the Congress, acting through its legislative authority.”
(See Napolitano memo.pdf)
However, according to Sessions’ office, "an illegal immigrant who receives a Social Security number will be able to draw federal tax credits, Social Security retirement benefits, and Social Security disability benefits.”