The company should implement Data Loss Prevention (DLP) to prevent employees from stealing data. Reference: CompTIA Security+ Study Guide: Exam SY0-601, Chapter 8

The Diamond Model is a framework for analyzing cyber threats that focuses on four key elements: adversary, capability, infrastructure, and victim. By analyzing these elements, security researchers can gain a better understanding of the threat landscape and develop more effective security strategies.

Push notifications are a type of technology that allows an application or a service to send messages or alerts to a user's device without requiring the user to open the application or the service. They can be used for multi-factor authentication (MFA) by sending a prompt or a code to the user's device that the user has to approve or enter to verify their identity. They can be non-disruptive and user friendly because they do not require the user to remember or type anything, and they can be delivered instantly and securely.

After segmenting the network, a network manager can use an access control list (ACL) to control the traffic between the segments. An ACL is a set of rules that permit or deny traffic based on its characteristics, such as the source and destination IP addresses, protocol type, and port number. Reference: CompTIA Security+ Certification Guide, Exam SY0-501