Description of Severance Arrangement with William P. Fasig

EXHIBIT 10.21

Description of Severance Arrangement with Xxxxxxx X. Xxxxx

XxxxXxxx has agreed to the following severance agreement should Xx. Xxxxx be involuntarily terminated from VeriSign without cause:

For up to 1 month of employment—receive 12 months salary

After 1 month of employment—receive 11 months salary

After 2 months of employment—receive 10 months salary

After 3 months of employment—receive 9 months salary

After 4 months of employment—receive 8 months salary

After 5 months of employment—receive 7 months salary

After 6 months of employment—receive 6 months salary

No severance payment is made in the event Xx. Xxxxx resigns voluntarily