diff --git a/packages/core/src/auth.ts b/packages/core/src/auth.ts
index 04e5cc28..2baa392c 100644
--- a/packages/core/src/auth.ts
+++ b/packages/core/src/auth.ts
@@ -231,6 +231,9 @@ export class Auth extends Serializable implements Storable {
     @AsSerializable(PBES2Container)
     legacyData?: PBES2Container;
 
+    /** Completely disables mfa for a given account. Only use for testing! */
+    disableMFA = false;
+
     constructor(public email: string = "") {
         super();
     }
diff --git a/packages/core/src/server.ts b/packages/core/src/server.ts
index 6b2358f3..7c4ea431 100644
--- a/packages/core/src/server.ts
+++ b/packages/core/src/server.ts
@@ -355,7 +355,8 @@ export class Controller extends API {
         auth.authRequests.push(request);
 
         const deviceTrusted =
-            this.context.device && auth.trustedDevices.some(({ id }) => id === this.context.device!.id);
+            auth.disableMFA ||
+            (this.context.device && auth.trustedDevices.some(({ id }) => id === this.context.device!.id));
 
         const response = new StartAuthRequestResponse({
             id: request.id,