If I were the Chief Information Security Officer of a publicly traded company, I would make sure the availability of the company’s system was important. I will provide some of the key protections I would implement in my company:

Authentication:
Why: Such a tool will make sure that only users who have authorized permission can access our company systems. It stops any unauthorized access and protects company-sensitive data.
How: use an authentication device such as a two-factor code. This will provide an extra layer of protection by asking the users to provide a code sent to their mobile device in addition to their password.


Encryption:
Why: This tool will make sure of the safety of the data during transformation and storage.
How: By using strong encryption such as TLS and SSL during data transition, encrypt company-sensitive data using secure key management practices.


Password Security:
Why: Many weak passwords are a common danger. Make sure that strong password policies will enhance security.
How: By asking the users to provide complex password requirements. For example, including length, special characters, and regular password changes and not using the same old password.


Firewalls:
Why: Firewalls work as a safeguard between the company’s internal network and threats from outside.
How: By spreading the firewall network to guard the entire network of the company and firewalls that protect individual devices, and by updating the firewall regularly to help it adapt to evolving threats.


Regular System Updates:
Why: By keeping the company systems updated, it will provide stability to the system.
How: By enabling automatic updates for all software components, such as operating systems, applications, and security tools, and reviewing the security patches regularly.


Access Control:
Why: If the company limits access to authorized employees, it will reduce the dangers of any unauthorized attempts.
How: By using tools such as RBAC to give permissions based on the employee’s job role in the company and assigning a regular check to access rights.