Data Loss Prevention - Source code detection improvements

<p>Data Loss Prevention (DLP) source code detection now focuses on identifying whole source code file uploads and downloads. Previously, source code detection performed partial scans resulting in a higher rate of false positives. Since only whole source code files are evaluated, code embedded in other content — such as chat messages, documentation, or code samples — is no longer flagged as source code, removing a common source of false positives.</p> <p>Source code detection requires a minimum of 500 characters to evaluate a file. Files below this threshold are not flagged to reduce noise. This threshold filters out small fragments that lack enough context for reliable classification.</p> <p>Enable and set <a href="https://developers.cloudflare.com/cloudflare-one/data-loss-prevention/dlp-profiles/advanced-settings/#confidence-thresholds">confidence levels</a> to tune match sensitivity. A higher confidence level reduces false positives by requiring stronger signals that the content is truly source code. A lower confidence level catches more files at the cost of additional noise.</p> <p>Source code detection applies to standalone source code files in <a href="https://developers.cloudflare.com/cloudflare-one/traffic-policies/http-policies/">Gateway HTTP policies</a>. It does not detect source code embedded within other file types or payloads, such as <code>.docx</code> files or chat messages.</p> <p>For more information, refer to <a href="https://developers.cloudflare.com/cloudflare-one/data-loss-prevention/dlp-profiles/predefined-profiles/#source-code">Source Code predefined profiles</a>.</p>