diff --git a/src/controllers/NostrController.ts b/src/controllers/NostrController.ts
index a976955..8e24e91 100644
--- a/src/controllers/NostrController.ts
+++ b/src/controllers/NostrController.ts
@@ -3,7 +3,10 @@ import { EventEmitter } from 'tseep'
 import store from '../store/store'
 import { SignedEvent } from '../types'
 import { LoginMethodContext } from '../services/LoginMethodStrategy/loginMethodContext'
-import { unixNow } from '../utils'
+import { clear, unixNow } from '../utils'
+import { LoginMethod } from '../store/auth/types'
+import { logout as nostrLogout } from 'nostr-login'
+import { userLogOutAction } from '../store/actions'
 
 export class NostrController extends EventEmitter {
   private static instance: NostrController
@@ -65,7 +68,22 @@ export class NostrController extends EventEmitter {
     const loginMethod = store.getState().auth.loginMethod
     const context = new LoginMethodContext(loginMethod)
 
-    return await context.signEvent(event)
+    const authkey = store.getState().auth.usersPubkey
+    const signedEvent = await context.signEvent(event)
+    const pubkey = signedEvent.pubkey
+
+    // Forcefully log out the user if we detect missmatch between pubkeys
+    // Allow undefined authkey, intial log in
+    if (authkey && authkey !== pubkey) {
+      if (loginMethod === LoginMethod.nostrLogin) {
+        nostrLogout()
+      }
+      store.dispatch(userLogOutAction())
+      clear()
+      throw new Error('User missmatch.\n\nPlease log in again.')
+    }
+
+    return signedEvent
   }
 
   nip04Encrypt = async (receiver: string, content: string): Promise<string> => {