Yutaka Sawada

**Name of the Vulnerable Software and Affected Versions** Type74 ED versions prior to 4.0 **Description** The issue concerns the misuse of 128-bit ECB encryption for small files, making it easier for attackers to obtain plaintext data via differential cryptanalysis of a file with an original length smaller than 128 bits. **Recommendations** For versions prior to 4.0, consider updating to a version that uses secure encryption methods to mitigate the risk of plaintext data exposure.