diff --git a/sonar-project.properties b/sonar-project.properties
new file mode 100644
index 0000000000..3a5f750714
--- /dev/null
+++ b/sonar-project.properties
@@ -0,0 +1,13 @@
+# SonarCloud Configuration for Aletheia
+
+sonar.projectKey=cheir-mneme_aletheia
+sonar.organization=cheir-mneme
+
+# Exclude false positive log injection warnings
+# SanitizeForLog() extension method sanitizes all user input before logging
+# but SonarCloud doesn't recognize custom sanitizers
+sonar.issue.ignore.multicriteria=e1
+
+# S5145: Log injection - false positive, using SanitizeForLog() sanitizer
+sonar.issue.ignore.multicriteria.e1.ruleKey=roslyn.sonaranalyzer.security.cs:S5145
+sonar.issue.ignore.multicriteria.e1.resourceKey=**/*.cs