What aspect does social media security focus on?

Social media security primarily focuses on the protection of personal information from unauthorized access. With the vast amount of personal data shared on social media platforms, ensuring that this information is secure is critical to prevent data breaches, identity theft, and other forms of cybercrime. Users often share sensitive information, including their location, contact details, and personal interests, making it essential for security measures to be in place to safeguard this information from malicious actors.

In light of this focus, other aspects like increased user interaction, marketing strategies, and advertising effectiveness are important for overall platform engagement and business success, but they do not pertain directly to the security measures necessary to protect user data. Therefore, while those elements are critical to the functioning and profitability of social media, they do not address the core issue of securing personal information, which is the heart of social media security.