Create SECURITY.md

[ridho403]

[vercel[bot]]

@ridho403 is attempting to deploy a commit to the unionbuild Team on Vercel.

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[aeryz]

Hey! Thanks for the contribution. I see that the file you added is a placeholder. Our team will work on the necessary guidelines for security purposes. I see this more like a request to add security guidelines, so please create an issue for your requests.