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icon: log-in
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# First Sign-In

The first time you sign in to your DMU portal account, the system
walks you through a short onboarding sequence: verify your email,
set a password, set up two-factor authentication. All three happen
back-to-back, in one continuous flow.

This page walks through each step. Block off about five minutes
the first time.

## Step 1 — Open the login page

Either click the **Login to DMU Portal** button in your welcome
email, or go directly to [portal.dmu.gr](https://portal.dmu.gr).

## Step 2 — You're redirected to secure.dmu.gr

You'll see the URL change to **secure.dmu.gr**. That's our identity
provider — a separate sign-in page that handles authentication for
the portal. The change of address is expected and the look-and-feel
matches.

## Step 3 — Enter your email

The first screen asks for your **email address** — the one your
welcome email was sent to. Type it in and click **Continue**.

## Step 4 — Verify the email

We email a **6-digit verification code** to your address. It usually
arrives within a few seconds.

- Switch tabs, grab the code from your inbox, and enter it on the
  next screen.
- If it doesn't arrive within a minute, check your spam folder, then
  hit the **Resend** button. A new code invalidates the previous
  one, so always use the most recent.

Entering the right code confirms you actually own the email address
on file. This step happens once during onboarding; from then on,
signing in is just password + your second factor. The code only
comes back if you've forgotten your password and need to reset it.

## Step 5 — Set a password

Right after verification, you're prompted to choose a password.

- The rules are shown on screen as you type (minimum length, mix of
  letters / digits / symbols, etc.). The strength indicator turns
  green when your choice satisfies every rule.
- A password manager is a good idea — every modern browser has one
  built in, plus standalone apps like 1Password or Bitwarden.

Confirm the password and click **Submit**. See
[Setting your password](setting-your-password) for the recovery
flow if you ever forget it later.

## Step 6 — Set up two-factor authentication

Finally, the system asks you to add a **second factor** — something
beyond your password. This is required, not optional: it stops
anyone who has your password from signing in without also having
your phone or security key.

Pick one of:

- **Authenticator app (TOTP)** — a 6-digit code that rotates every
  30 seconds, generated by an app on your phone (Google
  Authenticator, 1Password, Authy, Bitwarden, etc.). Most customers
  use this one.
- **Email code** — a one-time code sent to your registered email
  each time you sign in.
- **SMS code** — a one-time code sent by text message to your
  phone number.
- **Security key** — a physical USB or NFC key (YubiKey and
  similar) that you tap or insert at sign-in.

See [MFA & security](mfa-and-security) for the trade-offs and how
to add a second method later.

## Step 7 — You're in

You land back at [portal.dmu.gr](https://portal.dmu.gr), signed
in. From here you can:

- View your proposal and accept it — see
  [Proposal acceptance](../proposal-acceptance).
- Pay your first invoice — see [Payment](../payment).
- See everything else we share with you — services, project
  updates, the shared Drive.

## Subsequent sign-ins

After the first time, signing in is just **email → password →
your second factor** — on any device, no extra verification step.
The 6-digit verification code only comes back if you reset a
forgotten password.

## Stuck on any step?

Call or write to us — the easiest way is to reply to your
welcome email, or use the contact details on
[How to reach us](../help-and-support/how-to-reach-us). We can
walk you through any of the steps on the phone.