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- W3135725155 abstract "Organizations publish and share more and more electronic documents like PDF files. Unfortunately, most organizations are unaware that these documents can compromise sensitive information like authors names, details on the information system and architecture. All these information can be exploited easily by attackers to footprint and later attack an organization. In this paper, we analyze hidden data found in the PDF files published by an organization. We gathered a corpus of 39664 PDF files published by 75 security agencies from 47 countries. We have been able to measure the quality and quantity of information exposed in these PDF files. It can be effectively used to find weak links in an organization: employees who are running outdated software. We have also measured the adoption of PDF files sanitization by security agencies. We identified only 7 security agencies which sanitize few of their PDF files before publishing. Unfortunately, we were still able to find sensitive information within 65% of these sanitized PDF files. Some agencies are using weak sanitization techniques: it requires to remove all the hidden sensitive information from the file and not just to remove the data at the surface. Security agencies need to change their sanitization methods." @default.
- W3135725155 created "2021-03-15" @default.
- W3135725155 creator A5007075609 @default.
- W3135725155 creator A5055411101 @default.
- W3135725155 date "2021-03-03" @default.
- W3135725155 modified "2023-09-25" @default.
- W3135725155 title "Exploitation and Sanitization of Hidden Data in PDF Files." @default.
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- W3135725155 hasPublicationYear "2021" @default.
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