Bitcoin, although a digital currency, is not as anonymous as we like to think. In fact, he is pseudonymous by design. This means that we cannot directly reveal your identity with your bitcoin address. However, depending on the method you used to obtain it, then, in certain cases, your identity can be traced.
This article explores the different ways your identity can be revealed when using Bitcoin.
1. Open a wallet on a centralized platform
When you use a bitcoin wallet that asks you to add an email address, you are likely dealing with a non-custodial wallet. This means that you provide personal information to the companies that manage the wallet. Most cryptocurrency exchanges require their users to provide identity verification, such as uploading their proof of residence, a photocopy of their ID card or passport page and even a selfie of themselves holding their identity document. It is even the classic procedure of the famous KYC (Know your customer).
For example, platforms like Binance require your email address (a mandatory step) before you can create a new wallet. Revealing your email address risks compromising your identity. Some sites only require email registration without providing any identification documents. In this case, use a disposable email service like ProtonMail or Mailinator if you must provide one.
2. Carry out operations on non-confidential sites
Your Bitcoin spending transactions can also reveal who you are. For example, if you spend your Bitcoin on online shopping sites, in hotels, using a crypto debit card like Wirex , or in a Bitcoin-accepting cafe, these are places and merchants that can reveal who you are.
Think about your credit card information, CCTV footage, and personal information stored on online shopping apps. This could come from a merchant or exchange platform that has your personal information, or from someone who is personally associated with or knows who you are.
3. Link your bank account
When you link your crypto wallet to your own bank account, it is a direct way of revealing your identity. It's even the worst. Most people do this because it's easier to buy bitcoin with a credit card, that's a fact. It's also easier to withdraw fiat currency from the exchange to your bank account.
The act of converting BTC to your local fiat currency, for example Euro, mainly requires linking your bank account to your cryptocurrency exchange account. By doing this, both parties know exactly what you are doing. Converting BTC by linking your bank details reveals your true identity.
To avoid this, you can use peer-to-peer platforms that don't require KYC, such as LocalCoinSwap or the Peach app. This is already a first step towards not providing personal information to crypto companies.
- See the video : Buy bitcoin without KYC
4. Give your Bitcoin address publicly
Although your Bitcoin address is intended to be shared with others, that doesn't mean you should post it anywhere, especially on the Internet. Also don't forget that you can create as many addresses as you want.
When you share your Bitcoin address, be aware that it may be publicly accessible, such as on an online forum or social media platform like Twitter or Facebook. If anyone can see it, they can search for it on a blockchain explorer , view all your past transactions, and find out your current balance.
Far too many people – out of laziness – keep the same bitcoin address. Do not hesitate to create several for different services for example.
5. Not protecting your IP address
This is something that we tend to remember often but which is important to follow and apply. Avoid public Wi-Fi networks in airports or train stations for example. Using public Wi-Fi networks can pose security risks. If you transact Bitcoin over an unsecured Wi-Fi network, it may be possible for malicious third parties to monitor your activity and hack you.
The same goes for compromised private networks. If your private network is compromised by malware, attackers could potentially gain access to your information.
In many cases, using a VPN , whether or not you have cryptocurrencies, can be interesting and useful.
Conclusion
We didn't publish this article to make you paranoid. The idea is to understand that the privacy of Bitcoin also depends on your actions. It is important that you know that your personal information can sometimes be revealed without your knowledge.
It is worth noting that there are also other privacy-focused cryptocurrencies you might consider, such as Monero or ZCash , for example.
Read also:
- Fraudulent and blacklisted bitcoin addresses
- The different bitcoin addresses and how to recognize them
Bitcoin Pseudonymity FAQ
What is pseudonymity in the context of Bitcoin?
Pseudonymity in the context of Bitcoin refers to the fact that Bitcoin transactions and addresses are not directly linked to users' real identities. Each user is identified by a cryptographic address rather than personal information.
How does Bitcoin pseudonymity work?
Each Bitcoin user has a pair of keys: a public key (Bitcoin address) and a private key (kept secret). Transactions are recorded on the blockchain, but the identity of users is not directly revealed. Users can create new addresses with each transaction, thus preserving their pseudonymity.
Is Bitcoin completely anonymous?
No, Bitcoin isn't completely anonymous, but rather pseudonymous . While transactions are transparently recorded on the blockchain, addresses aren't directly linked to real identities. However, additional efforts are needed to maintain privacy, and the use of centralized services can compromise pseudonymity. That's precisely what we've just discussed in this article.
Can Bitcoin addresses be traced back to a real identity?
In general, Bitcoin addresses cannot be directly traced to a real identity. However, practices such as using centralized services, transacting on regulated platforms, and other factors can potentially compromise privacy. It is important to adopt security practices to preserve pseudonymity.
How can I optimize the confidentiality of my Bitcoin transactions?
To maximize privacy, avoid using reusable addresses, use hardware wallets, avoid public Wi-Fi networks, use VPNs , and minimize the use of centralized services linked to credentials. Using mechanisms like CoinJoin can also improve transaction privacy. You can also use privacy-focused Bitcoin wallets such as Samurai Wallet.
Do Bitcoin wallets offer an anonymity option?
Some Bitcoin wallets offer privacy-enhancing features, such as using the Tor network, generating new addresses for each transaction, and integrating anonymization protocols like CoinJoin. It's recommended to choose privacy-focused wallets to maximize anonymity. Alternatively, you can use privacy-oriented wallets like Samurai Wallet, for example.
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