DLP rule and non-OCR files

Contributor

We have several external clients send PDF files to internal recipients and they attach non-ocr files with .pdf extensions. we are trying to setup an advanced DLP rules to scan those files for sensitive info types like CC, Routing numbers. etc. but DLP rules are unable to detect sensitive info in those files. Just wondering if any other options to deleted these. looks like DLP and Exchange transport rules are not supported on non-OCR files.

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