What is a crucial action the medical facility's security officer can take to limit unauthorized access to a computer system?

Creating a complex password policy is a vital action for a medical facility's security officer because it establishes a secure authentication method that significantly reduces the likelihood of unauthorized access to the computer system. Passwords serve as the first line of defense against cyber threats and unauthorized users who may attempt to gain access to sensitive patient data and healthcare records.

A complex password policy typically requires passwords to meet certain criteria, such as including a mix of upper and lower case letters, numbers, and special characters, along with a minimum length requirement. This makes it more challenging for potential intruders to guess or crack passwords, thereby enhancing the overall security of the system.

Furthermore, a strong password policy can be enforced through regular updates, which necessitates users to change their passwords periodically, reducing the risk of long-exposed credentials being compromised. Education and training on password security can also be a part of this policy, reminding users not to share passwords or use easily guessable information such as birthdays or common words.

While other options may contribute to the overall security strategy, they do not directly address the risk of unauthorized access to digital systems in the same impactful way that a robust password policy does. For instance, name tags help identify personnel but do not secure access. Installing antivirus software is important,