$60$

A large multinational corporation has recently experienced a significant data breach. The breach was detected by an external cybersecurity firm, and the corporation's IT department was unable to prevent or detect the breach in its early stages.

The CEO wants to ensure that such a breach does not happen again and is considering several options to enhance the company's security posture.

Which of the following options would be the MOST effective in preventing and detecting future data breaches?

Conducting regular cybersecurity training for all employees.

Implementing a dedicated Computer Incident Response Team $($CIRT$).$

Increasing the budget for the IT department to purchase more advanced security software.

Hiring an external cybersecurity firm to conduct regular penetration testing.