Each server protected by the web tamper protection feature consumes one license. If your servers consume all licenses, you must purchase more licenses to protect more servers. This topic describes how to purchase more licenses for web tamper protection.

Background information

In the upper-right corner of the Tamper Protection page, you can view the total number of licenses, the number of used licenses, and the license expiration date.

If all licenses of web tamper protection are used, the The number of machines has reached the upper limit message appears. To protect more servers, you must purchase more licenses.A message about license consumption


  1. Log on to the Security center console.
  2. In the left-side navigation pane, click Defense > Tamper Protection.
  3. In the upper-right corner of the Tamper Protection page, click Upgrade Now.
    You can also perform the following steps to purchase more licenses: In the Protection section on the Tamper Protection page, click Upgrade Now below Licenses.
  4. On the page that appears, specify the number of new licenses.
  5. Select Security Center Terms of Service, and settle the payment.

What to do next

After you purchase more licenses, you can enable web tamper protection for more servers. For more information, see Enable tamper protection.