Blog Hub
Daily-read security guidance focused on anonymity, document risk, and safer submissions. Calm language, strict defaults, practical steps.
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Anonymity 101 (for documents)
If you’re here, you probably have the “I need to share this… but I don’t want it traced back to me” feeling. This is a plain‑English guide to the boring little…
PGP in plain English
PGP (Pretty Good Privacy) is a way to encrypt messages (often email) so only the intended recipient can read them — useful when you need a private, verifiable…
Using PDF Changer offline (high‑risk mode)
If you’re handling a sensitive PDF, working offline can reduce the number of network events while you scrub it. PDF Changer is designed so processing happens…
What PDF metadata is (and why it matters)
PDFs can carry hidden metadata (Author/Creator, timestamps, XMP) and “interactive” elements (forms, links, attachments) you didn’t mean to share.
Why we remove links, forms, and annotations
PDF links, comments, and form fields are “annotations” — and they can carry actions, embedded files, and surprising behavior across viewers. We remove all…
Device and network basics (non‑technical)
You can scrub a PDF perfectly and still get identified because of where and how you did it. Most “anonymity failures” come from the device or the network, not…
Printer tracking dots (a hidden risk)
Some printers embed tiny yellow “tracking dots” on printed pages. If you print and scan a sensitive document, those dots can become part of the image — and…
Sharing documents to journalists (safer defaults)
Sharing documents to journalists is mostly about two things: keeping your identity safer, and keeping the material credible. This is a calm set of defaults for…