Here is how a Cloud or Virtual Browser works.
The browser does NOT run on your device, it runs on a remote server in a virtual device created for just one browsing session.
Your device accesses the remote server and tells it where to browse.
The remote server runs your devices request on its virtual device, and then transmits to your device only the resulting screen displays.
No cookies are placed on your device. Your device does not execute any website code. None of the personal information on your device can be seen by the website because it only sees a device on the virtual server.
Because the website only sees the virtual device on the remote server as running a browser, it can store and access cookies and other information as in the normal course only on that virtual device.
When you close the cloud browser on the remote server’s virtual device, the virtual device is terminated – deleted along with all information stored during that browsing session.
The next time you start the cloud browser, a new virtual device with new device IDs is created on the remote server, which is therefore clean of all prior browsing history, cookies, etc.
If you get a virus from a website, that virus is only on the virtual device, and is never on your device. This is true Virus Free protection, far beyond what any anti-virus software can possibly deliver.
This Virus Free protection comes about because when you terminate your browsing session, the virus gets destroyed because the virtual device is deleted from the server. The virus can never get to your device because your device only gets screen displays generated by the cloud browser and is protected from all executable website content.