Insecure Deserialization, featured in the OWASP Top 10 list of vulnerabilities, involves the unsafe handling of serialized objects, potentially allowing attackers to execute harmful payloads. Serialization converts objects into plaintext for transfer, while deserialization reverts them to their original form. This vulnerability arises when developers overlook security measures, treating serialized objects as trustworthy, which can lead to remote code execution if exploited. Although difficult to quantify its prevalence due to reliance on survey data, insecure deserialization is acknowledged as a significant risk, especially in widely-used applications. The impact varies based on object use, with critical outcomes like remote code execution possible. Detectify and similar tools primarily identify known vulnerabilities, but manual intervention is often required for exploitation, highlighting the need for regular security scans and stringent data validation. The infamous 2017 Equifax hack exploited such a vulnerability, underlining its potential severity.