Sensitive Data Exposure, now categorized under Cryptographic Failures in the OWASP Top 10 for 2021, is a vulnerability where applications do not adequately protect sensitive information such as passwords, credit card data, or session tokens, which can result in severe consequences. Common in smaller organizations and hobby projects due to often overlooked security practices, it can also affect larger entities, though less frequently. The potential impact varies depending on the type of data exposed, with significant risks such as financial loss or unauthorized access to user accounts. Exploitability can range from challenging to straightforward; for instance, an unencrypted database can be easily accessed by an attacker. Detectify offers automated tests to identify these vulnerabilities by assessing over 700 potential issues, including those in the OWASP Top 10, providing a valuable tool for ensuring web security. Prevention requires understanding what constitutes sensitive data and consistently applying protection measures like encryption and secure transmission protocols to mitigate risks.