The address for ISEC when taking a taxi or Lyft/Uber is as follows (click for opening google maps):

805 Columbus Ave, Boston, MA 02115

(do not use the generic address which you find online - that's for NEU as a whole, and it is far from this location). This is what the building looks like:

ISEC building

For a map showing the best walking route from Ruggles T station (follow red arrows).

Map here

(exit down the stairs where buses stop - ISEC is on the Columbus Ave side of the tracks, and not the main campus Huntington Ave side)

ISEC 326 (Sontag, NU Office)

ISEC 355 (Students and postdoc)

ISEC 301 (Meeting Room)

805 Columbus Ave, Boston, MA, 02115