Data security profoundly influences customer trust online by safeguarding sensitive information from breaches and unauthorized access. A strong security posture, including measures like encryption and authentication, reassures customers their personal and financial data is protected. When businesses prioritize data security, they enhance their reputation, encouraging customer loyalty and confidence. Conversely, security breaches can lead to significant trust erosion, damaging relationships and ultimately affecting profitability. Therefore, strong data security practices are essential for building and maintaining customer trust.