diff --git a/security/security_levels.txt b/security/security_levels.txt
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+Inferencium
+Security Levels
+
+Copyright 2022 Inference
+License: CC-BY-4.0
+
+0.0.0.0
+
+
+Security level: s0
+Intended access: Public
+Encryption: None
+Signing: Optional
+
+
+Security level: s1
+Intended access: Authorised users of s1 or lower security levels
+Encryption: Enforced
+Signing: Enforced
+Permitted symmetrical encryption ciphers:
+		0. AES
+		1. ChaCha20*
+		2. Twofish
+
+
+Security level: s2
+Intended access: Authorised users of s2 or lower security levels
+Encryption: Enforced
+Signing: Enforced
+Permitted symmetrical encryption ciphers:
+		0. AES
+		1. ChaCha20*
+		2. Twofish
+
+
+Security level: s3
+Intended access: Authorised users of s3 or lower security levels
+Encryption: Enforced
+Signing: Enforced
+Permitted symmetrical encryption ciphers:
+		0. AES
+		1. ChaCha20*
+
+
+Security level: s4
+Intended access: Authorised users of s4 or lower security levels
+Encryption: Enforced
+Signing: Enforced
+Permitted symmetrical encryption ciphers:
+		0. AES
+		1. ChaCha20*
+
+
+*Preferred when hardware-accelerated AES is unavailable.