Monero vs Bitcoin: how their privacy differs

Bitcoin and Monero take opposite approaches to privacy. Bitcoin records every payment on a public ledger that anyone can trace,^[1] so privacy depends on extra tools and careful habits. Monero hides the sender, the receiver and the amount of every transaction by default.^[2] Neither is simply “more secure”: they make different trade-offs.

Is Bitcoin anonymous?

No. It’s pseudonymous: addresses aren’t names, but everything done with them is public. Bitcoin.org says all Bitcoin transactions are “public, traceable, and permanently stored”, that anyone can see the balance and history of any address, and that addresses “cannot remain fully anonymous”, because people usually have to reveal who they are to buy goods or services. Its advice is to use each address only once.^[1]

Researchers put the problem neatly in 2013: in Bitcoin, the ownership of money is implicitly anonymous, but “its flow is globally visible”.^[3]

How does chain analysis trace Bitcoin?

Chain analysis means studying the public ledger to work out who owns what. A basic rule of thumb, the common-input-ownership heuristic, assumes that when a transaction spends coins from several addresses, one person owns them all. Analysts also try to spot which output is the payment and which is change going back to the payer.^[4]

Grouping addresses this way produces clusters, each probably one wallet or business. In the 2013 study, researchers clustered Bitcoin addresses with heuristics like these, then bought goods and services themselves to put names to the clusters.^[3] Once one address in a cluster is tied to a person, for example through an exchange that checked their ID, the rest of the cluster can be too.

What privacy tools does Bitcoin have?

Several, and all of them are optional. Each helps in some situations, and each has limits.

CoinJoin

A CoinJoin combines coins from several people in one shared transaction, to hide where each person’s coins came from and where they went. Popular CoinJoin wallets depended on companies to run the coordination service, and that proved to be a weak point in 2024.^[5]

What happened to CoinJoin services in 2024?

In April 2024, US prosecutors in New York charged Samourai Wallet’s founders, Keonne Rodriguez and William Lonergan Hill, with operating “a cryptocurrency mixer”, alleging that it facilitated more than $100 million in money laundering.^[5] Within weeks, zkSNACKs, the company behind Wasabi Wallet, blocked US users and said it would suspend its CoinJoin service for all users at the end of May. Trezor said it would remove CoinJoin from its Trezor Suite app by 1 June, worldwide.^[5]

PayJoin

PayJoin, specified in BIP-78, has the person being paid add some of their own coins to the payment, so both sides contribute inputs. That makes the common-input-ownership heuristic unreliable, which helps even people who don’t use PayJoin. BIP-78 is marked “Deployed” in Bitcoin’s proposals repository, but both wallets must support it, and the receiver has to offer an online PayJoin endpoint.^[4]

Lightning

The Lightning Network moves payments off the main blockchain, through channels between users. That keeps individual payments off the public ledger, but researchers have shown attacks that use public information about the network to learn how many coins a node has, or who sent and received a payment routed through it.^[6]

Silent Payments

Silent Payments, specified in BIP-352, let you publish one reusable address while each payment to it lands at a different address that outsiders can’t link back to it. The cost is that wallets must scan the blockchain to find incoming payments, which is hard for light wallets; the BIP calls light-client support an open research area. As of November 2026, BIP-352 is marked “Complete”, and it only helps when both wallets support it.^[7]

How is Monero’s privacy different?

Monero builds privacy into every transaction instead of adding it on. Ring signatures hide the sender, stealth addresses hide the receiver and RingCT hides the amount, and privacy is mandatory, so you can’t make a transparent payment by mistake.^[2] There’s no coordinator to shut down and nothing to switch on.

Is Monero actually private?

On its blockchain, yes: the details Bitcoin shows to everyone are hidden by default.^[2] Around the blockchain, gaps remain. A remote node can see the IP address a transaction comes from, and exchanges that require ID know who their customers are.^[2] How private is Monero? goes through the gaps and how to close them.

Is Monero 100% untraceable?

No. Monero’s own FAQ says: “There is no such thing as 100% anonymous.” It points out that your anonymity set, the crowd you hide in, is the people using Monero, and that bugs or future analysis could reveal information.^[2] Its privacy is strong by default, but not absolute.

What does Monero give up for privacy?

A supply you check with cryptography, not counting

Bitcoin’s amounts are public,^[1] so anyone running a node can add up how many coins exist. Monero hides its amounts, so its supply can’t be counted that way. Instead, cryptographic commitments let every node check that what goes into each transaction equals what comes out plus the fee, which shows no coins were created out of thin air.^[2]

The supply rules differ too. Bitcoin is capped at 21 million coins. Monero has no cap: a permanent tail emission adds 0.6 XMR per block, less than 1% a year and falling towards zero over time.^[2]

A cryptographic check is only as good as the code behind it. In February 2017, a member of the Monero Research Lab found a flaw in the CryptoNote code that Monero shares with other coins: it allowed an unlimited number of coins to be created without anyone noticing. Monero quietly patched it within days, scanned its blockchain and found it had not been exploited, and disclosed the bug in May 2017 after warning other affected coins.^[8]

Heavier transactions

Ring signatures and range proofs take up space. Monero’s FAQ calls its transaction data “heavy”, and a full copy of its blockchain took about 225 GB in 2024.^[2] A basic Bitcoin payment carries no such proofs. Fees work differently as well: Monero’s block size and fees adjust with demand, and the tail emission is partly meant to keep fees low.^[2]

Fewer places to buy and sell it

Bitcoin is listed almost everywhere. Monero isn’t: as of November 2026, Kraken doesn’t let clients in the EEA, the UK, Canada or Australia deposit or trade it, although it doesn’t restrict Monero for US clients.^[9] Fewer listings mean fewer ways to buy, sell or spend it. Why exchanges delist Monero explains the rules behind this.

Is Monero more secure than Bitcoin?

“Private” and “secure” answer different questions. Privacy is about what other people can learn about your payments. Security is about whether coins can be stolen, forged or reversed, and whether the network resists attack.

On privacy, Monero hides what Bitcoin reveals, and that can protect you, because a visible balance can make you a target. On supply, Bitcoin is easier to audit, because its amounts are public. Against attacks on the chain itself, a lot depends on how much mining power protects it. In September 2025, a mining pool called Qubic released a privately mined chain that forced Monero’s network to discard its 18 most recent blocks and the 118 transactions in them, and exchanges responded by waiting for more confirmations.^[10]

Some risks are the same for both. Neither coin protects you from scams, a lost backup or malware on your device. Monero wallets explained covers keeping your keys and backups safe.

How do Monero and Bitcoin compare side by side?

Monero or Bitcoin: which fits which need?

Neither wins on every count, so it depends on what you need. Bitcoin offers the widest support and a supply anyone can count, and its privacy tools can help if you use them with care. Monero is designed for payments that don’t expose your balance and history, at the cost of heavier transactions, fewer exchange listings and a supply you verify through cryptography. For other designs, see Privacy coins explained and Monero vs Zcash.