[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/LocalAuth](https://evolu.dev/docs/api-reference/common/local-first/LocalAuth) › SecurityLevel

```ts
type SecurityLevel =
  "secureEnclave" | "strongBox" | "biometry" | "deviceCredential" | "software";
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:441](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/local-first/LocalAuth.ts#L441)

Enumerates the highest security tier that was effectively applied while
storing a value.