CALIBREX OSINT ACADEMY · FIELD NOTES

Ten briefings.
Three minutes each.

Free, interactive notes on the core moves of open-source intelligence — each one short enough for a coffee break, and practical enough to use today. Create a free Academy account to read them all.

01Foundations · 2 minWhat OSINT is — and what it isn’tOpen-source intelligence is a method, not a search box. The definition, the intelligence cycle in one breath, and four myths that get beginners into trouble.Free · sign in to read 02Collection · 3 minSearch like an analyst: operatorsTen seconds of syntax beats ten minutes of scrolling. Build a precise query with quotes, site:, filetype:, exclusions and dates, and see what each part does.Free · sign in to read 03Verification · 3 minWhere did this photo come from?Reverse image search, earliest copies and provenance: the routine that exposes most recycled “breaking news” photos in under a minute.Free · sign in to read 04Verification · 3 minWhat a file knows about itselfPhotos and documents carry hidden metadata — camera, time, software, sometimes location. Learn to read it, and to spot when it doesn’t add up.Free · sign in to read 05Analysis · 3 minGeolocation: reading a placeEvery outdoor image is full of clues — script, signs, road markings, vegetation, architecture. Learn the order in which analysts read them.Free · sign in to read 06Analysis · 3 minTelling the time from a shadowShadows are clocks. Use their length and direction to test when a photo was really taken — and catch captions that lie about the time of day.Free · sign in to read 07Verification · 3 minCan you trust this source?Primary, secondary or unverified? A fast way to weigh any source by asking who made it, how they know, and what they gain.Free · sign in to read 08Collection · 2 minThe internet remembers: archivesPages change and posts disappear. Web archives let you see what a page said before — and prove that it changed.Free · sign in to read 09Verification · 3 minManipulated media and deepfakesEdited images, cheap fakes and synthetic voices: what to look for, why the context matters more than the pixels, and how to report uncertainty honestly.Free · sign in to read 10Practice · 3 minThe line: ethics, law and OPSECWhat separates an analyst from a stalker. The questions to ask before you search, the lines you never cross, and how to protect yourself while you work.Free · sign in to read

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