Last year was an incredible year for DeFiChain. Not only did the leading non Turing complete blockchain experience the highest development activity among major DeFi projects in 2021, underscoring the team’s effort to continuously push boundaries by developing and upgrading new exciting features that our community loves, but it also gained more widespread adoption among retail investors alike. Staying true to our road map means following through with amazing products and services that are based on sound community voting principles. Our goal has always been to deliver unique products with added value that live up to the highest safety standards, rather than chasing short lived crypto phenomena. This is also very strongly expressed in our roadmap for 2022. But before we start focusing on new, exciting challenges, we’d like to once again delve into the most important achievements that happened on DeFiChain last year. Without our amazing community and our engineering team, who have worked r...

This post-mortem article deals with the atomic swap exploit on the DeFiChain network that was brought to light on 2 January 2022. In the following sections, we will discuss what has happened, the various solutions to it, and most importantly — underscore the fact that all your dBTC are still backed. What has happened? On 2nd January 2022 the DeFiChain community discovered an anomaly in the amount of dBTC tokens (BTC tokens on DeFiChain). Upon investigation, the developers found out that an attacker has managed to exploit a bug in the atomic swap function of the DeFiChain blockchain that seems to have existed since June 2021. Atomic swap contracts were introduced with the Eunos Upgrade in early June. These contracts facilitate the trustless and decentralized exchange of cryptocurrencies between two distinct blockchains without having to place reliance on any intermediaries, e.g. BTC to dBTC. The main goals being addressed with “atomic swaps” are the matchmaking between buyers and seller...