# Understanding Bitcoin

> What is Bitcoin       Bitcoin often dubbed digital gold is a decentralised cryptocurrency that operates without a central authority Launched in 2009 by an

Source: https://customersupport.xapo.com/en_us/understanding-bitcoin-BySEYqtvR

Last updated: 2025-11-27T00:13:08.730Z

**The Fundamental Nature of Bitcoin**

It is helpful to think of Bitcoin as a new category of asset with its own unique properties, which make it fundamentally different from traditional currencies or investments. A key aspect is that it is decentralised, meaning no central bank or government controls it.   
  
This also contributes to its nature as a volatile asset, where its market value can change significantly in a short period. As a purely digital asset, it has no physical form like a coin or banknote and exists only on a global computer network.

*   It is not issued or controlled by any central bank, government, or single company.
    
*   The value of Bitcoin can change dramatically in a short time. Its price can fall just as quickly as it can rise.
    
*   It is a type of cryptoasset secured by cryptography that exists only in the digital world.
    

  

**Bitcoin Transactions: How They Work**

Every Bitcoin transaction is recorded on a public ledger called the blockchain. This process has important implications, as all transactions are permanent and irreversible and require transaction fees to be processed.

*   Once a transaction is confirmed on the blockchain, it cannot be changed or reversed. Always double-check the address before you send.
    
*   A fee is required to process a Bitcoin transaction, which is paid to the network of computers that validate and secure the network.
    

  

**Security and Control of Your Bitcoin**

Accessing and controlling Bitcoin depends entirely on cryptographic "keys." It is critical to understand the difference between your public key and your private key, and to always follow the critical rule of keeping your private key secret.

  

*   The public key works like your bank account number; you can share it with others to receive Bitcoin.
    
*   The private key works like a secret password, giving you the power to access and send your Bitcoin.
    
*   You must never share your private key. Anyone who knows it has full control of your Bitcoin. If you lose your private key, you lose access to your Bitcoin forever.
    

  

**Key Risks You Must Understand**

Investing in Bitcoin carries unique risks that are very different from those associated with  traditional investments such as stocks and investment funds . These risks stem directly from its decentralised nature. Without a central authority to provide support or guarantees, you must be fully aware of the potential for a total loss of your investment. It is also important to understand that there is no central authority to appeal to in the case of errors, making your own diligence and security crucial.

*   The value of Bitcoin could drop to zero. You should only invest an amount you are prepared to lose entirely.
    
*   If you make a mistake (like sending Bitcoin to the wrong address), there is no central organisation to appeal to. Your funds cannot be recovered.
    

  

**Bitcoin and Regulation**

The regulatory environment for crypto is evolving. It's crucial to understand the distinction between Bitcoin itself and the companies, like Xapo Bank, that provide services for it. These providers must follow -specific regulatory rules for your protection, but you should also know there is no deposit insurance for crypto.

*   The Bitcoin network has no central governing body.
    
*   Your Bitcoin holdings are not protected by government-backed deposit insurance schemes like the Gibraltar Deposit Guarantee Scheme (GDGS) or the UK's Financial Services Compensation Scheme (FSCS).
    

  

**How Xapo Bank Secures Your Bitcoin**

Managing a private key is a significant technical responsibility. At Xapo Bank, we act as your custodian to manage this complexity, providing institutional-grade security while ensuring your Bitcoin is always your Bitcoin.

*   This means we take on the high-stakes job of securing your private keys, so you do not have to worry about losing them.
    
*   We hold your Bitcoin on your behalf in a segregated account. It is legally your asset and is never mixed with Xapo Bank’s own funds.
    
*   We use a combination of advanced security measures, including multi-signature access and deep cold storage, to protect your assets from theft and unauthorized access.