SQL Injection Attack is a security vulnerability that targets databases through improperly sanitized user input. This type of attack occurs when an attacker is able to insert malicious SQL statements into an input field, such as a login form or search box. In the context of cryptocurrency applications, successful SQL injection can lead to unauthorized access to sensitive information, including user account details, transaction histories, and private keys. Attackers can manipulate queries to extract data, alter records, or gain administrative control over a system. The consequences can be severe, resulting in financial losses, theft of funds, and reputational damage to organizations. To prevent SQL injection attacks, developers should implement strong input validation, use prepared statements, and continuously monitor their systems for vulnerabilities. Secure coding practices and regular security audits are also essential to protect cryptocurrency platforms from such threats.