Which of the following statements are true for a zero-day attack? [Choose all that apply.] A zero-day vulnerability can only exist within the operating systems A zero-day vulnerability can only be discovered when the software is deployed A zero-day vulnerability can be example of an unknown threat A zero-day attack is impossible to detect as it exploits the unknown vulnerabilities Incorrect A zero-day attack exploits an unknown vulnerability. A zero-day vulnerability can only be discovered when the software is deployed. Before the deployment, since the software is not ready and rolled out, it is impossible to discover the zero-day vulnerability. A zero-day vulnerability can be an example of an unknown threat. Unknown to the organization, the vulnerability may be present in the organization's operating systems or applications