How to Redact Sensitive Information from Screenshots on Mac
A blurred password is still a password. Reversible filters, cropped-but-not- resaved images, and layered exports have all put private data back in front of people who were never meant to see it.
This guide will cover the difference between hiding pixels and destroying them, which macOS tools are safe for which job, and how to build a habit that does not depend on you spotting every secret by eye.
Sealshot detects sensitive items on device and covers them with solid fill — never a reversible blur — before export. See Redaction and Protect & share.
The full guide is being written. In the meantime the documentation above covers the same ground.