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Disposable Hats

A temporary identity for a specific job.

Create a short-lived Hat for a contact, project or handoff. Keep that exchange separate from the identity you use for longer-term work.

No phone number or email required for core Hat use.

City of Hats conversation interface showing an exchange about a confidential proposal
City of Hats · Disposable Hats

The useful difference

A clearer way to handle sensitive work.

01

A defined lifetime

Choose the supported duration and review when the identity will expire.

02

Purpose-specific contact

Share the temporary Hat with the people involved in that exchange.

03

Free to get started

Free use includes starter limits. Premium offers more capacity and longer durations where available.

How it works

Three deliberate steps.

01

Create a Disposable Hat

Open the relevant Hat creation action in the messenger.

02

Share its identity

Give the intended contact the temporary Hat ID or supported contact route.

03

Plan for expiry

Preserve information you are required to retain through an approved process before the Hat expires.

Know the boundary

Choose controls with clear expectations.

A disposable identity is not a guarantee of anonymity or forensic erasure. Recipient copies, device state, connection data and details you disclose can still identify an exchange.

Review the security evidence

Questions, answered

Before you get started.

Where can I use Disposable Hats?

Open City of Hats to review the controls available for your client, content and plan. The app shows applicable requirements before you proceed.

What should I check before sharing sensitive information?

Verify the recipient, use a supported device and choose appropriate access and retention rules. Review the Security Evidence Center for boundaries and evidence status.

City of Hats is free to use. Feature availability and limits vary by plan and client. Premium is optional; review current limits in the app or on the plans page.

Explore what matters next

Build the workflow around your work.

Start with a Hat

Give sensitive work its own space.

Start free. Choose your controls as the work requires them.