2024.03.24 14:36:01 (Mastodon 112151164430661160, Twitter 1771908855347433946) from Daniel J. Bernstein:
Searching for ways to communicate without exposing your information to Google? Here's a PDF ("Portable Document Format"), created with standard tools, containing a red message that's invisible to (pre-123) Chrome users: https://cr.yp.to/2024/20240324/secret.pdf Joint work with Jolijn Cottaar.