Which action can be taken to enhance data security?

Creating unique answers for security questions is an effective way to enhance data security. Security questions are often used as an additional layer of authentication, particularly for account recovery processes. By creating unique answers that are not easily guessable or publicly available, users can help ensure that their accounts remain secure from unauthorized access. Common answers or easily obtainable information, such as a mother's maiden name or the name of a childhood pet, can be exploited by fraudsters if they have access to that personal information.

In contrast, limiting the complexity of passwords (the first option) does not inherently enhance security; rather, stronger, more complex passwords are generally recommended to prevent unauthorized access. Allowing easy access to sensitive data (the third option) directly undermines security practices by creating vulnerabilities that could be exploited. Using public Wi-Fi networks for company transactions (the fourth option) poses significant risks, as public networks can be intercepted by malicious actors, putting sensitive data at risk. Therefore, creating unique answers for security questions stands out as a proactive measure to bolster security.