Every photo you take contains a hidden file within a file.
It is called EXIF data. And it records your GPS coordinates, your device model and serial number, the exact timestamp of capture, your WiFi network name, and your camera settings — all embedded silently into the image file before you ever share it.
You cannot see it. But anyone with a free online tool can.
I discovered this problem and spent weeks building a solution. This is the story of ANFA Layer — an open source image privacy and security library that strips all metadata and generates cryptographic proof of image authenticity.
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