diff btw security check/name check

march485

Registered Users (C)
Is there a difference between 'mandatory security checks' and fbi name check? My I485 application is pending since march 2004(pd 08/2001). When I inquired after I140 got approved last year I was told fbi name check is pending, now I hear 'mandatory security checks'. What is the difference?

TIA for any information you can share
 
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