> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arbitrageone.de/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I log in and reset my password?

> Log in to ArbitrageOne, reset your password and unlock a locked account.

## Short description

You log in at [app.arbitrageone.de](https://app.arbitrageone.de) with your email and password. If you forget your password or your account gets locked after too many failed attempts, you can reset it yourself via an email link.

## How the login works

### Login page

On `/login` you enter your email address and password. After clicking **Log in** you land on the Dashboard. If you don't have an account yet, you can get to sign-up via *Register now*.

### Language

The login page adapts automatically to your browser language. With `?lang=de` or `?lang=en` you can override the language.

## Step-by-step: Reset password

### Step 1: Open the reset page

On the login page click **Forgot password?** or go directly to `/passwordreset`.

### Step 2: Enter your email

Enter the email address of your account and click **Reset password**.

### Step 3: Check your email

Within a few minutes you'll receive an email with a link. If no email arrives: check the spam folder. The notice *"Thanks for your request. If an account exists for this email, we'll send you a password reset link in a few minutes."* is shown regardless of whether the email exists — that's privacy by design, not an error.

### Step 4: Set a new password

Click the link in the email. The password must be **at least 10 characters** long. Enter it twice and click **Reset password**.

### Step 5: Automatic login

After a successful reset you're logged in automatically. All other open sessions on other devices are terminated immediately for security reasons.

## Account lockouts

ArbitrageOne locks accounts after too many failed attempts to prevent brute force.

When locked, you'll see a notice on the login page and a direct link to the password reset.

## Important notes

* **Minimum password length: 10 characters.** Recommendation: use a password manager.
* **Two-factor authentication (2FA)** is currently **not** available.
* After a password reset all existing sessions are invalidated — you must log in again on all devices.
* The reset link is single-use and expires after a short time. If it has expired, request a new one.

## Common issues

**Issue:** "My account has been locked."
**Solution:** Reset the password via `/passwordreset`. This lifts the lock and you can log in again.

**Issue:** "Your account hasn't been activated yet."
**Solution:** After registration you have to confirm your email address. Check your inbox (including spam) for the confirmation email. If none arrives, contact support.

**Issue:** "Reset link doesn't work (`URL_EXPIRED`)."
**Solution:** The link has expired or has already been used. Request a new reset link.

**Issue:** "I'm not receiving the reset email."
**Solution:** Check spam and make sure you're using the correct email address. If nothing arrives after 10 minutes, contact support — your account may be deactivated.

## Related articles

* [How do I manage my account and subscription?](../account-abo/abo-verwalten)