diff --git a/src/security/intel_sgx.md b/src/security/intel_sgx.md
index 72c9d0a..a452ab9 100644
--- a/src/security/intel_sgx.md
+++ b/src/security/intel_sgx.md
@@ -1,4 +1,6 @@
 # Intel SGX
 
 Refer to [this link](https://www.intel.com/content/www/us/en/security-center/technical-details/sgx-attestation-technical-details.html)
-to see the list of current vulnerabilities and mitigations for Intel SGX.
\ No newline at end of file
+to see the list of current vulnerabilities and mitigations for Intel SGX.
+
+We use Intel SGX feature to protect our brain nodes and hacker challenge.