A multinational corporation with strict data protection policies has discovered unauthorized instances of sensitive information, such as client account details, being shared via email with external parties. To mitigate this risk, which strategy should the security team prioritize?
Deploying updated antivirus software across all endpoints to address security concerns
Applying full disk encryption to all devices within the organization to protect data at rest
Enhancing user access controls on all systems containing sensitive information
Implementing a solution at the network egress points to monitor content and prevent unauthorized transmissions based on predefined policies