.mdSiren
Coming soon
Menu

Author

Joseph Waddington

Founder of .mdSiren

Writing about document security, prompt injection and exact-version controls for AI workflows.

About

Writing at the document-intake boundary

Joseph Waddington is the founder of .mdSiren, a document-security product focused on the checkpoint before outside documents enter AI systems. He writes about document-borne prompt injection, exact-version controls before RAG ingestion, and practical document-review decisions. His writing distinguishes an observed signal from a measured system effect and from a consequential outcome, helping readers decide what merits review without inferring malicious intent.

Editorial approach

Evidence first, with clear limits

Joseph’s writing separates the presence of an instruction-like signal, a measured change in a model or pipeline, and a consequential real-world outcome. A finding is a reason to review—not proof that a document or its author is malicious.

Selected writing

Practical guidance for document-based AI workflows

Evidence-led articles on preparing documents, reviewing instruction-like signals and understanding what AI systems can read.

Information for editors

Approved contributor details

These details can be used when commissioning or publishing an editorial contribution from Joseph.

Contact Joseph about an editorial contribution
Approved byline
Joseph Waddington
Short biography
Joseph Waddington is the founder of .mdSiren, a document-security product focused on the checkpoint before outside documents enter AI systems. He writes about document-borne prompt injection, exact-version controls before RAG ingestion, and practical document-review decisions. His writing distinguishes an observed signal from a measured system effect and from a consequential outcome, helping readers decide what merits review without inferring malicious intent.
Canonical author page
https://mdsiren.com/authors/joseph-waddington