Software belonging to the Data Loss Prevention (DLP) category aims to prevent the leakage of sensitive organizational information by utilizing the technique of DLL injection. This involves embedding the code (DLL files) of the DLP software into other software applications, such as web browsers, to monitor user behavior when accessing websites. This monitoring helps determine whether users upload the organization’s data intentionally or accidentally.
However, the practice of DLL injection poses significant security risks, stability issues (similar to the CrowdStrike case), and may lead to software conflicts that make it challenging to pinpoint the cause of problems. In response to these concerns, certain web browsers like Chrome have allowed access for DLP software to analyze web content through the Content Analysis Connector Agent SDK.
Recently, Mozilla announced that Firefox will also support the Content Analysis Connector Agent SDK to address the problem of DLP software embedding DLL files (similar to the approach taken by Windows post-CrowdStrike incident). By already incorporating Chrome’s SDK suite, DLP software can seamlessly integrate without needing any additional modifications.
The changes will take effect in Firefox 138, specifically for organizational usage (as companies are deemed to have access rights to employee data as per company policies). Prior activation of Firefox Enterprise Policy is required to enable the utilization of Content Analysis SDK.
TLDR: Data Loss Prevention software employs DLL injection to safeguard organizational data confidentiality, with Mozilla’s Firefox now offering support for Content Analysis SDK to address security concerns related to software integration.
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