add security.md (#411)

Carreau · web-flow · commit b950f02b9e89 · 2025-05-16T20:49:59.000+02:00
diff --git a/SECURITY.md b/SECURITY.md
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+# Security Policy
+
+## Reporting a Vulnerability
+
+All IPython and Jupyter security are handled via security@ipython.org.
+You can find more information on the Jupyter website. https://jupyter.org/security
+
+## Tidelift
+
+You can report security concerns for nbformat via the [Tidelift platform](https://tidelift.com/security).
