# One-time code (OTP)

> A one-time code (OTP, one-time password) is a six-digit code CIRO NOISE sends by email. It's valid for 10 minutes and works once. You use it to sign in without a password, unlock the vault or confirm a deletion.

- Page: https://www.ciro-noise.de/glossar/einmalcode
- Deutsche Fassung: https://www.ciro-noise.de/glossar/einmalcode.md

A one-time code, also called a one-time password or OTP, works exactly once and expires after a short time. CIRO NOISE uses it instead of a password: you enter your email address, get a six-digit code in your inbox and are signed in once you type it in.

The advantage: there's no password to remember, change regularly or protect from phishing. Whoever has your inbox can sign in, and you protect your inbox anyway.

## How the one-time code works in CIRO NOISE

For sign-in, the one-time code is valid for 10 minutes. After five wrong attempts it's used up and you request a new one. The same email also contains a sign-in link valid for 15 minutes, in case you'd rather click than type.

For particularly sensitive steps, CIRO NOISE sends a separate one-time code: to reveal passwords in the vault, to create a one-time share, to delete the organization and to delete your account. These codes are also valid for 10 minutes and five attempts.

## Security

Every code is tied to its purpose. A vault code doesn't sign anyone in, and a deletion code only works for the exact organization it was sent for. CIRO NOISE stores the codes for the vault and for deletions only as an irreversible fingerprint, so a look into the database reveals no valid code.

## An everyday example

Deniz signs in on his new laptop in the morning. He enters his email address, opens his inbox and types in the code. Later he needs the hosting password and gets a second code that unlocks the vault for an hour.

## Frequently asked questions about One-time code (OTP)

### What is a one-time code (OTP)?

A one-time code (one-time password, OTP) is a code that works only once and expires quickly. In CIRO NOISE it has six digits, arrives by email and replaces the password when you sign in.

### How long is the CIRO NOISE sign-in code valid?

The one-time code for signing in to CIRO NOISE is valid for 10 minutes. The sign-in link in the same email is valid for 15 minutes.

### What happens if I enter the one-time code wrong several times?

After five wrong attempts, the one-time code in CIRO NOISE is used up. Simply request a new code by email.

### What else does CIRO NOISE use a one-time code for besides sign-in?

CIRO NOISE asks for a separate one-time code before you reveal passwords in the vault, create a one-time share, delete the organization or delete your account.

## Related terms

- [Vault](https://www.ciro-noise.de/en/glossary/vault.md)
- [One-time share](https://www.ciro-noise.de/en/glossary/one-time-share.md)
- [PIN](https://www.ciro-noise.de/en/glossary/pin.md)

See the feature: https://www.ciro-noise.de/en/faq.md

## CIRO NOISE at a glance

- CIRO NOISE is a workspace for small businesses and teams of up to about 50 people: wiki, tasks, customer requests, finance with quotes and invoices, customers (CRM), meetings, knowledge with AI, social media, password vault, and time tracking behind one login.
- Price: the first 2 seats are free, with every feature. Each additional seat costs €25 per month plus VAT. No credit card to start.
- Privacy: servers and AI run in EU data centers, content never trains AI models, and permissions apply per person and feature.
- AI connection: Claude and other AI assistants connect through MCP, the open standard for AI tools, with exactly the permissions of the person.
- Provider: CIRO GmbH, Eching, Germany. Contact: hello@ciro.gmbh, phone +49 89 24 88 31 22.