> For the complete documentation index, see [llms.txt](https://help.cards.gomining.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cards.gomining.com/overview/security.md).

# Security

### Is a PIN code required?

Yes, a PIN code is required for your GoMining Card.

### How do I receive my PIN code?

Your PIN is sent via SMS immediately after your card is issued.

It is required for:

* ATM withdrawals
* Offline purchases

{% hint style="success" %}
PIN is required for payments **over 50 USD** (50 EUR for EEA residents).
{% endhint %}

### Can I set my own PIN code?

No. The PIN is automatically generated and sent to you via SMS.

### What if I enter the wrong PIN several times?

If your PIN is entered incorrectly 3 times, it will be blocked for 24 hours.

You can either:

* Set a new PIN in your account, or
* Wait 24 hours, after which your existing PIN will become active again

### How to pay for online purchases?

To complete an online card payment, two steps of verification are required:

1. **OTP (One-Time Password)** – You’ll receive a one-time SMS code to confirm the transaction.
2. **3DS Static Password** – After entering the SMS code, enter the static password you created during card setup.

{% hint style="warning" %}
The static password cannot be disabled.
{% endhint %}

Both steps are required to complete online purchases.

{% hint style="info" %}
You do not need a 3DS password for ATM withdrawals or offline purchases.
{% endhint %}

### Can I link the GoMining Card to external crypto wallets?

No. You cannot link the GoMining Card directly to external crypto wallets.

All payments are made only from the crypto balances held in your GoMining account.