From 54af4586d888fea6918308ff3efd24b151d66a18 Mon Sep 17 00:00:00 2001
From: Takuma IMAMURA <209989118+hyperfinitism@users.noreply.github.com>
Date: Tue, 20 Jan 2026 19:57:39 +0900
Subject: [PATCH] chore: add SECURITY.md

---
 SECURITY.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 SECURITY.md

diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 0000000..7133016
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,12 @@
+# Reporting a Vulnerability
+
+If you have found a security vulnerability, **please do not open a public GitHub Issue**.
+
+Instead, please report it privately via **GitHub Security Advisories**. You can use either of the following:
+
+- **Link**: [Private Vulnerability Reporting](https://github.com/acompany-develop/py-snp-utils/security/advisories/new)
+- **From the GitHub Web UI**:
+  - Go to this repository's **Security** tab
+  - Click **Report a vulnerability**
+
+When reporting, please include as much detail as possible (e.g., affected versions, impact, reproduction steps, and any suggested fixes or mitigations).