Facebook Embedding Tracking Data Inside Photos You Download
facebook is embedding tracking data inside photos you download.
I noticed a structural abnormality when looking at a hex dump of an image file from an unknown origin only to discover it contained what I now understand is an IPTC special instruction. Shocking level of tracking.
![facebook image tracking 2019-07-13 p3dqc](i/facebook_image_tracking_2019-07-13_p3dqc.png)
See also: Screenshot Tracking Watermark