From c7028d3368e90fef2dd2a7ae68877767d602eff0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C5=91rinc?= <pap.lorinc@gmail.com>
Date: Tue, 13 Jan 2026 12:01:41 +0100
Subject: [PATCH] init: log that additional logs may contain privacy-sensitive
 information

Log an info message when any `-debug` categories are enabled, noting they may contain privacy-sensitive information (e.g. transaction IDs) and should not be shared publicly.

Co-authored-by: Vasil Dimov <vd@FreeBSD.org>
Co-authored-by: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>
---
 src/init/common.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/init/common.cpp b/src/init/common.cpp
index d1926d04940..5436cba59c2 100644
--- a/src/init/common.cpp
+++ b/src/init/common.cpp
@@ -98,6 +98,11 @@ util::Result<void> SetLoggingCategories(const ArgsManager& args)
             return util::Error{strprintf(_("Unsupported logging category %s=%s."), "-debugexclude", cat)};
         }
     }
+
+    if (LogInstance().GetCategoryMask() != BCLog::NONE) {
+        LogInfo("Debug logging is enabled (-debug). Additional log output may contain privacy-sensitive information. Be cautious when sharing logs.");
+    }
+
     return {};
 }