What is EXIF data and why should you view it?
EXIF (Exchangeable image file format) stores hidden details inside photos: camera model, lens, shutter speed, ISO, timestamps, and sometimes GPS coordinates. Social platforms may strip some tags on upload, but originals from phones and DSLRs often still contain sensitive data.
Viewing EXIF before you share helps you understand what you are accidentally revealing—especially location and device identifiers.