•68, the ASCII representation for a “D”, is put in
mailbox #78. But mailbox #78 was being used to store the return address!
•Now when Norman is finished with the GetLastName() subroutine, he will read a 68 as the return address
instead of the real return address.
•He’ll then begin executing instructions at mailbox #68, which is Patty’s instructions to steal Norman and make him do what Patty wants instead of what Alice wants (Patty’s hijacking subroutine, if treated as ASCII, just
so happens to spell out SOLZHENGRA).