Your photos know where you've been
Every iPhone shot embeds EXIF: camera model, timestamp, exposure β and unless you disabled it (Settings > Privacy & Security > Location Services > Camera > Never), precise GPS coordinates. iMessage strips location on send; email attachments, AirDrop originals and many social uploads don't. That's why a "what's for sale" photo can reveal a home address.
Sharing safely
Per-share: in the Photos share sheet, tap Options and toggle Location off. Permanent: re-encode β our compressor outputs pixels only, metadata stripped. Keep originals backed up first (backup guide).