diff --git a/.changeset/protected-page-login-copy.md b/.changeset/protected-page-login-copy.md
new file mode 100644
index 000000000..1c78d4810
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+++ b/.changeset/protected-page-login-copy.md
@@ -0,0 +1,5 @@
+---
+"gitbook": patch
+---
+
+Clarify the not-found page on sites with login-protected content: prompt anonymous visitors to log in, and tell logged-in visitors they may not have access.