diff --git a/src/app/component/infra/detail/host.component.html b/src/app/component/infra/detail/host.component.html
index 8ab043f..34779c0 100644
--- a/src/app/component/infra/detail/host.component.html
+++ b/src/app/component/infra/detail/host.component.html
@@ -91,8 +91,9 @@
       <div of-auto-height key="3">
         <perfect-scrollbar>
           <ul class="key-value">
-            <li *ngFor="let discoveredBy of host.discoveredBy">
-              <span class="meta-value">{{discoveredBy.key}}</span>
+            <li *ngFor="let item of securityMap | keyvalue">
+              {{item.key | stringPrettify}}
+              <span class="meta-value">{{item.value}}</span>
             </li>
           </ul>
         </perfect-scrollbar>
diff --git a/src/app/component/infra/detail/host.component.ts b/src/app/component/infra/detail/host.component.ts
index 33f4549..1abe82e 100644
--- a/src/app/component/infra/detail/host.component.ts
+++ b/src/app/component/infra/detail/host.component.ts
@@ -11,6 +11,7 @@ import { PingService } from '../../../service/ping.service';
 import { PingOption } from '@overflow/model/config/ping';
 
 import * as log from '../../../core/util/log';
+import { MetaDiscovererTypeEnum, toMetaDiscovererTypeEnum } from '@overflow/model/meta';
 
 @Component({
   selector: 'app-infra-detail-host',
@@ -18,7 +19,7 @@ import * as log from '../../../core/util/log';
   styleUrls: ['./host.component.scss'],
 })
 export class HostComponent implements OnChanges {
-  @Input() host: Host;
+  _host: Host;
 
   @ViewChildren(AutoHeightDirective) autoHeightDirectives: QueryList<AutoHeightDirective>;
 
@@ -32,6 +33,28 @@ export class HostComponent implements OnChanges {
   pingResult: PingResult;
   pingResultRaw: string;
 
+  securityMap: Map<string, string>;
+
+  @Input()
+  set host(host: Host) {
+    this._host = host;
+
+    if (undefined !== this._host.discoveredBy) {
+      this._host.discoveredBy.forEach((discovererType) => {
+        const discovererTypeEnum = toMetaDiscovererTypeEnum(discovererType);
+        switch (discovererTypeEnum) {
+          case MetaDiscovererTypeEnum.ICMP:
+            this.securityMap.set(MetaDiscovererTypeEnum.ICMP, 'ICMP(Ping) is not safe.');
+            break;
+          default:
+            break;
+        }
+      });
+    }
+  }
+  get host(): Host {
+    return this._host;
+  }
 
   constructor(
     private pingService: PingService,
@@ -40,6 +63,8 @@ export class HostComponent implements OnChanges {
     this.count = 5;
     this.interval = 1;
     this.deadline = 1;
+
+    this.securityMap = new Map();
   }
 
   ngOnChanges(simpleChanges: SimpleChanges): void {