What You See Is (Not) What You Got: The Human Factor in PDF Signature Verification

Reported by arXiv cs.CR (Jakob Heher, Emanuel Pichler, Stefan More)

Summary by Cyber Security News13 Nov 2026, 06:00 CET

About this summary. This is a short excerpt from the description that arXiv cs.CR published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://arxiv.org/abs/2611.15472

arXiv:2611.15472v1 Announce Type: new Abstract: Signed PDF documents have legally binding value under frameworks such as the EU's eIDAS regulation. In this work, we present Genuine PDF Forgeries, a novel attack class that focuses on human factors in signature validation. Our attacks target the disconnect between cryptographically verifiable signer certificates and human-visible signature blocks embedded in documents.

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