diff --git a/2019/04/15/Caving-db-storage/index.html b/2019/04/15/Caving-db-storage/index.html
index a8a196ca..1b446782 100644
--- a/2019/04/15/Caving-db-storage/index.html
+++ b/2019/04/15/Caving-db-storage/index.html
@@ -99,7 +99,7 @@
 <meta property="og:image" content="https://res.cloudinary.com/dozyfkbg3/image/upload/v1555312234/paper/%E5%9B%BE%E7%89%879.png">
 <meta property="og:image" content="https://res.cloudinary.com/dozyfkbg3/image/upload/v1555312316/paper/%E5%9B%BE%E7%89%8710.png">
 <meta property="og:image" content="https://res.cloudinary.com/dozyfkbg3/image/upload/v1555312359/paper/%E5%9B%BE%E7%89%8711.png">
-<meta property="og:updated_time" content="2019-04-15T07:56:38.871Z">
+<meta property="og:updated_time" content="2019-04-15T07:58:50.738Z">
 <meta name="twitter:card" content="summary">
 <meta name="twitter:title" content="Caving_db_storage">
 <meta name="twitter:description" content="Carving database storage to detect and trace security breaches 复原数据库存储以检测和跟踪安全漏洞原文下载  MotivationDBMS(数据库管理系统) 通常用于存储和处理敏感数据，因此，投入了大量精力使用访问控制策略来保护DBMS。 一旦用户在DBMS中获得提升权限（无论是合理的还是通过攻击的），实施的安全方案可以绕过，因此无法再">
diff --git a/sitemap.xml b/sitemap.xml
index 40133a53..a6e74099 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -4,7 +4,7 @@
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     <loc>https://cool-y.github.io/2019/04/15/Caving-db-storage/</loc>
     
-    <lastmod>2019-04-15T07:56:38.871Z</lastmod>
+    <lastmod>2019-04-15T07:58:50.738Z</lastmod>
     
   </url>