Which action increases vulnerability to DoD systems?

Which action increases vulnerability to DoD systems?

• A. Using strong passwords
• B. Keeping software updated
• C. Regular cybersecurity training
• D. Using easy passwords

Answer: (D)

Using easy passwords heightens risk because weak credentials are much easier for attackers to guess or crack, granting unauthorized access to DoD systems. When a password is simple or commonly used, brute-force and dictionary attacks can quickly succeed, and if an attacker gains one account, they may pivot to others or exfiltrate sensitive data. Strong, unique, longer passwords with complexity dramatically increases the effort required to break in, especially when paired with additional protections like multi-factor authentication. The other actions—keeping software updated and regular cybersecurity training—help reduce risk by closing vulnerabilities and improving user awareness, while using strong passwords directly counters one of the simplest attack vectors.

Using easy passwords heightens risk because weak credentials are much easier for attackers to guess or crack, granting unauthorized access to DoD systems. When a password is simple or commonly used, brute-force and dictionary attacks can quickly succeed, and if an attacker gains one account, they may pivot to others or exfiltrate sensitive data. Strong, unique, longer passwords with complexity dramatically increases the effort required to break in, especially when paired with additional protections like multi-factor authentication. The other actions—keeping software updated and regular cybersecurity training—help reduce risk by closing vulnerabilities and improving user awareness, while using strong passwords directly counters one of the simplest attack vectors.