The previous page is sending you to https://www.vitalsource.com/products/beginning-security-with-microsoft-technologies-vasantha-lakshmi-v9781484248539?duration=30&srsltid=AfmBOoqHL1yQVZY2k7Bgx2bdNpB-lk4svf5hM6v1zcWkl8HahMst1MTdcSY.

 If you do not want to visit that page, you can return to the previous page.