Bisq protocol exploit: ~11 BTC stolen:

On May 1, 2026 an attacker exploited a bug in Bisq v1’s trade protocol and stole 11.59 BTC from 10 users (mostly altcoin trades). The vulnerability has been patched, a security hotfix is expected soon, and Bisq plans to fully reimburse all victims in BTC or BSQ after a DAO vote around May 25. Only keep the BTC you need for active trades in your wallet until the hotfix is live. Official Update

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Bisq

Bisq

Buy and sell bitcoin for fiat (or other cryptocurrencies) privately and securely using Bisq's peer-to-peer network and open-source desktop software. No registration required.

Bisq is an exchange and p2p service that accepts Monero, Bitcoin, Fiat, and Cash. It has a guaranteed no-KYC policy and has a score of 10/10. There are 18 user ratings averaging 4.4/5.

Scores

10
Overall
Excellent
99
Privacy
Excellent
100
Trust
Excellent
lvl. 0/4
Guaranteed no KYC
Terms explicitly state KYC will never be requested.
KYC Policy

Overall = 60% Privacy + 40% Trust (Truncated)

Learn about scores All attributes list

Terms of Service Review

Bisq is a decentralized, peer-to-peer desktop application for trading bitcoin against fiat and alternative cryptocurrencies. It operates without central servers, user accounts, or KYC checks.

Fiat Chargeback Risk

Bisq cannot reverse fiat chargebacks made via external banking systems. If a buyer initiates a chargeback after bitcoin is released, the seller has no recourse within the platform.

Self-Custody

Bisq does not hold user funds. Trading funds are held in 2-of-2 multisignature addresses controlled solely by the two participating traders.

Decentralized Architecture

The application connects directly to a peer-to-peer network over Tor. There are no central servers storing user data or transaction histories.

Non-Custodial Dispute Resolution

In the event of a dispute, mediators and arbitrators do not hold a multisig key and cannot unilaterally release escrowed funds.

No Fiat Custody

Bisq never touches or holds fiat currency. Fiat payments are transferred directly between the buyer and seller using agreed-upon external payment services.

Reviewed from bisq.wiki/Frequently_asked_questions

ToS reviews are AI-generated and should be used as a reference only.

Events

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  1. Ongoing since

    Bisq protocol exploit: ~11 BTC stolen

    On May 1, 2026 an attacker exploited a bug in Bisq v1’s trade protocol and stole 11.59 BTC from 10 users (mostly altcoin trades). The vulnerability has been patched, a security hotfix is expected soon, and Bisq plans to fully reimburse all victims in BTC or BSQ after a DAO vote around May 25. Only keep the BTC you need for active trades in your wallet until the hotfix is live. Official Update

    Source
  2. Attribute added

    Attribute "Non-custodial protocol" was added to Bisq

  3. Attribute added

    Attribute "Decentralized network" was added to Bisq

  4. Attribute added

    Attribute "Usage can be detected on public blockchains" was added to Bisq

  5. Currency update

    Removed currencies: LIGHTNING

  6. Attribute added

    Attribute "Strict no-log policy" was added to Bisq

  7. KYC update

    KYC level changed from 1 to 0

  8. Attribute removed

    Attribute "Strict no-KYC policy" was removed from Bisq

  9. KYC update

    KYC level changed from 0 to 1

  10. Domain change

    Service URLs updated from https://bisq.network/ to https://bisq.network

Learn about events

Evidence and Review History

Verified

Passed repeated checks over time and showed consistent behavior.

  • No review checks have been published yet
  • Last review May 2
  • Verified May 2

Comments

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5
72%
4
11%
3
11%
2
0%
1
6%

AI Summary

Updated

Bisq is highly praised as a decentralized P2P exchange that offers excellent privacy and no KYC requirements. Users appreciate the secure multisig escrow and the ability to trade fiat for privacy coins like Monero. However, many find the platform to be sluggish and heavily criticize the Java app. The complex interface requires a learning curve, and the mandatory security deposit is a hurdle for beginners. Despite occasional bot delays and low liquidity, it remains the gold standard for users valuing true financial freedom.

  • No KYC
  • High privacy
  • Secure escrow
  • Decentralized P2P
  • Altcoin support
  • Sluggish performance
  • Complex interface
  • Heavy Java app
  • Security deposit
  • Bot delays
  • Low liquidity
foaming_allotment_9621
Single review

Bisq 1 Excellent service—I’ve been using it for many years. Yes, there are occasional minor technical issues, but they’re very rare—about once every 2–3 years. I just want to thank the creators for being there.

insoluble_eagle_2971
Active user

I think the concept is great, but the app is incredibly sluggish. It's basically useless like this.

decadent_wisp_7350
Single review

I exchanged once only with bisq2 platform, and had no issues. However, looking at the support chat, I noticed 2 issues I wish to highlight:

  1. Multiple sellers use bots to process their transactions, resulting in delayed exchanges when bots stop working properly and the seller is not immediately available (as it is often the case of sellers using bots). This is known to Bisq and apparently tolerated.

  2. I have been offered to exchange outside the formal process, reported it, and the Bisq support took no action against the seller. They simply say "It is up to you to decide if you want to take that risk". I personally think it should not be tolerated.

On top of all that, I found this article that highlights various risks related to Bisq that may potentially lower their score.

https://haveno.exchange/faq/#haveno-is-privacy-focused

beleaguered_throat_6433
Single review

P2P platforms work a bit slowly, but if confidentiality is important to you, this is an excellent solution.

uneasy_worsted_970
Single review

I like this platform :) Have been using it for years

hopeless_infirmary_6984

Can anybody verify if they have done anything higher than 5 figures in 1 swap?

door-to-door_cohesion_3572

Excellent service, never had any issue, the interface is a bit complex to understand at the beginning, but it's really worth to try !

sad_installation_127
Single review

yeah it's goated because it truly doesnt actually require ID and you can use it over tor i believe

bowed_hymn_6193

this is NOT an exchange. the main UI interface makes it look like an exchange but its not. its a p2p escrow marketplace disguised as one.

not a scam or KYC, but just feel that people should know this.

invading_atom_8819

Bisq is a p2p exchange. Not a market place.

alright_bagpipe_4610

So far, only had good experiences with exchanging fiat (SEPA) for Monero.

pastel_thrum_510

could take a bit to get use to it but solid platform i would say

forgiving_controller_8867

Probably the best and most privacy-focused platform I've used so far. It's a bit tricky to understand at first, but it's worth it. I hope more users start using it to improve liquidity.

burnt_speedster_1770
Single review

Amazing concept but man, the Java app..

invading_atom_8819
Active user

P2P Exchange. Works very good, however for security reasons you need to be patient.

invading_atom_8819

The only thing that bothers me a bit is that you already need Bitcoin to buy Bitcoin. Security deposit. Bisq2 is the solution for that from Bisq where you can buy Bitcoins in smaller amounts. Around a few hundret USD is the biggest amount you can trade there.

Till the Bisq MuSig stuff will be released Bisq2 is a solution that makes trading on Bisq not that painful.

grateful_popularization_7280

What we'll do without Bisq? Unreplaceable....

legitimate_incarnation_6562

It’s a bit slow and takes some getting used to, but if you value privacy and security over convenience, Bisq is a great choice.

lucky_sublimation_151

Never had ann issue and always found honest people to trade with. There's no second best!

irritable_amour_862

Bisq.network is good service! 5 of 5!

Trêvoid

In Bisq, funds are locked in a 2-of-2 multisig Bitcoin escrow smart contract, and escrow only activates if there is a dispute.

moist_shift_3472

The golden standard for decentralized trading. From regular people to other regular people, just as Satoshi intended. Bisq is the perfect way to sell your BTC for FIAT without any KYC and at similar rates as CEXs. It can take a couple of hours to get comfortable with it but once you have everything set up, it becomes easy and convenient to perform trades. Bisq is for people who actually care about privacy and understand that privacy always has a convenience price. Bisq also supports p2p trading of monero <-> btc and in my experience the rates are generally better than those of instant exchanges. Highly recommended.

Swapuz

Bisq definitely nails the privacy aspect — no KYC, no middlemen. But yeah, it’s not for the impatient. Great tool if you're willing to trade a bit of convenience for true P2P freedom.

unified_listing_4404

Bisq is a nice idea, but the Java implementation is hell. And there aren't many offers for a reasonable price as well.

silly_prelude_7849

If you don't find the prices reasonable then create your own offer 🤷‍♂️

unified_listing_4404

Unfortunately, it's due to my national currency. Nobody is using BISQ here, so making a new offer won't make a difference. I think BISQ would be more popular if it would be more user friendly and not feeling so "heavy" as a software. BISQ 2 feels buch better.