A Calculated Risk(1992)

Katherine Neville

When financial executive Verity Banks' latest proposal is axed by her boss, she decides to show how easy it is to break through automated security, hide money, and then show senior management where it is. Then her former mentor, financial wizard, Dr. Zooltan Tor ups the ante, and dares her to steal a billion dollars, invest it to earn thirty million in three months, then put the original billion back before anyone notices. To heighten the challenge, Tor and Verity will compete against each other, though Tor gives Verity an she can use a computer for her theft, but he cannot....
A BOOK-OF-THE-MONTH-CLUB ALTERNATE SELECTION