Businesses are investing heavily in advanced cybersecurity technologies such as antivirus solutions, firewalls, and intrusion detection systems. However, the greatest risk often comes from within the organization due to human error. Employees may inadvertently download malicious attachments, fall for phishing scams, or connect infected USB drives, which can compromise security. Hackers exploit this vulnerability by targeting individuals rather than systems, using tactics that create urgency to manipulate employees into clicking malicious links. The financial impact of such errors can be severe, leading to significant losses and regulatory penalties under the Nigeria Data Protection Act (NDPA 2023). Small businesses are particularly at risk, as a single breach can damage reputations and customer trust. Organizations need to prioritize employee training and awareness alongside technology investments, as compliance with the NDPA 2023 includes employee behavior. Effective measures include training employees to recognize threats, confirming sensitive requests, and encouraging the reporting of phishing attempts. Investing in a "human firewall" by equipping employees with knowledge and skills is essential for enhancing cybersecurity.