01 / Understand the arrangement
What does the escrow actually hold?
Some services hold a seller's Bitcoin during a trade. Other protocols use transaction signatures, deposits or different arrangements. Do not assume every product described as P2P uses the same escrow, or any escrow at all. Find out who can release funds, what both parties must do and what happens when they disagree.
Bitcoin's own peer to peer network is a different concept. It lets participants exchange and verify transactions without making every Bitcoin purchase a marketplace trade between strangers.
A bank payment is a separate event.
Bisq's payment documentation makes a useful distinction: money transfers take place outside its software. Different payment methods carry different reversal, timing and verification risks. A trade interface cannot turn a pending transfer into settled money simply by displaying a reassuring message.
Before choosing an offer, read the current rules for that specific product, version, currency and payment method. Identify the payment deadline, required deposit, withdrawal conditions and dispute route. If you cannot explain how your money comes back after a failed trade, resolve that uncertainty before paying.
Escrow still depends on software.
In its May 16, 2026 report, Bisq said a May 1 protocol exploit affected Bisq v1 altcoin trades. The report distinguished those trades from fiat trades and said Bisq 2 and Bisq Easy were not affected. Its June 16 update reported reimbursements and further security work. These are dated reports from the project, not a current security certification or a promise of reimbursement for a future loss.
The lesson is narrower than “all P2P is unsafe.” Check incident reports and release notices as well as the feature list. A decentralized design still has code, operating assumptions and failure modes.