---
lang: en
title: 'API docs: security.typedprincipal._securityid_'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/security
permalink: /doc/en/lb4/apidocs.security.typedprincipal._securityid_.html
---

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[Home](./index.md) &gt; [@loopback/security](./security.md) &gt; [TypedPrincipal](./security.typedprincipal.md) &gt; [\[securityId\]](./security.typedprincipal._securityid_.md)

## TypedPrincipal.\[securityId\] property

<b>Signature:</b>

```typescript
get [securityId](): string;
```

