Final answer:
To extend virus scanning software to customers while protecting internal systems, a business should detect malware and require a username and password for network access.
Step-by-step explanation:
When extending virus scanning software to customers while protecting internal systems, there are two security measures a business should take:
- Take steps to detect any presence of malware: By implementing effective malware detection measures, the business can ensure that any potential threats are identified and dealt with promptly, minimizing the risk of unauthorized access to internal systems.
- Require a username and password for network access: Implementing a secure login system with unique usernames and strong passwords will help restrict access to the internal network only to authorized individuals, ensuring that customers can download the virus scanning software without compromising the security of internal systems.