You work for a small company, and your manager has asked you to improve the organization's cybersecurity practices. Which of the following measures can improve cybersecurity for your small company? $($Select all that apply and list them in priority order.$)$

A$)$ Allow employees to use their personal devices for work without any security requirements.

B$)$ Conduct regular employee training on recognizing phishing emails.

C$)$ Store all sensitive data in an unsecured, shared folder accessible by all employees.

D$)$ Implement multi$-$factor authentication for accessing company systems.

E$)$ Use the same password for all company accounts for simplicity.