diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 98f73fa..16641a4 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2277,7 +2277,10 @@
 						  organization, **Risk = vulnerability + threat**
 						- Safeguards :-> safeguard reduces the harm posed by information
 						  security vulnerabilities or threats
-					- Risk management
+					- Risk management :-> Risk management as means to justify information
+					  security laws, process of listing the all the relevant factors and
+					  taking steps to control them where possible
+					-
 	- LATER 概率论 (隔了一个周末)
 	  collapsed:: true
 	  SCHEDULED: <2023-06-19 Mon>