Because of a security-update the developer "Pulse Secure LLC" must be verified when installing the Pulse-Secure-Client.
When installing Pulse Secure the following window opens:
In order to solve the problem please follow these steps:
- Go to System Preferences => Security => General in order to allow "Pulse Secure LLC" access to your system.
First click the lock in the left corner.
- Afterwards you are asked for the access data of your device.
Please type in your data.
- After typing in your data you can allow "loading the system software of the developer "Pulse Secure"".
- Afterwards you have to allow for the Pulse Secure Client to have access to your system preferences.
- Then you can continue with the configuration of the Pulse-Secure-Client here.