Blockchain firm Kirobo has rolled out an “Undo Button” tool for Ethereum users, offering a way to reverse ETH transfers under specific conditions. The service became available on November 12, 2020, initially for ETH, with support for ERC20 tokens planned later. It works with MetaMask and wallets that support WalletConnect.
A recovery layer for Ethereum transfers
The report compares the concept to Bitcoin’s replace-by-fee (RBF), which allows users to replace an unconfirmed transaction by attaching a higher fee. Kirobo’s Ethereum approach targets a similar user need—recovering from transfer mistakes—but does so through a password-based logic layer rather than a fee replacement mechanism.
According to the company, when a sender initiates a transfer, they create a password. The funds are only released when the recipient enters the same password. If that does not happen, the sender can retrieve the assets later. Kirobo says this setup is designed to protect users from sending funds to the wrong address, making input errors, or transferring assets to smart contracts that do not support deposits.
Reducing transfer anxiety and operational mistakes
Kirobo said the Ethereum version also includes protection against man-in-the-middle attacks. CEO Asaf Naim stated that the company’s logic layer removes the need for a small test transaction in many cases, which could reduce the anxiety users often feel before sending funds to a third party.
Naim also said Kirobo’s Bitcoin version of the “Undo Button” had been highly popular in recent months. With both Bitcoin and Ethereum transaction activity rising and fees climbing during that period, the company argued that human error is unavoidable and that recovery tools can serve a practical purpose.
Hardware wallet support may come next
Beyond current support for MetaMask and WalletConnect, Naim said the tool is expected to work with Trezor and Ledger in the near future. The broader goal appears to be adding a safety layer for mainstream users without changing Ethereum’s underlying protocol.
Still, the idea of reversible transactions remains controversial in crypto. Similar debates have long surrounded Bitcoin’s RBF model, which some users view as a vulnerability despite its continued use. Whether Kirobo’s system can improve usability while preserving the certainty expected in blockchain transactions will likely depend on user adoption and market response.