Summary: This guide shows Australian investors how to bridge (transfer) their cryptocurrencies off the Harmony One network to the Cronos network. To bridge tokens between any blockchain networks you will need to use a bridging protocol like Synapse.
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What happened to the Harmony One (Horizon) Bridge? Unfortunately the Harmony One network was recently the subject of a massive cyber attack where hackers were able to get away with $100M worth of funds from the Horizon (Harmony One) Bridge. It was one of the largest crypto hacks in 2022 and the FBI (Federal Bureau of Investigation) has opened an investigation to find the attackers.
Below you can see an official statement put out by the Harmony One team on Twitter.
1/ The Harmony team has identified a theft occurring this morning on the Horizon bridge amounting to approx. $100MM. We have begun working with national authorities and forensic specialists to identify the culprit and retrieve the stolen funds.
Where to bridge Crypto from Harmony One to Cronos?
As the native bridge of Harmony, Horizon/Harmony One bridge was recently hacked, it is no longer available to use. There is only one other bridging platform that allows direct bridging between these two networks. Synapse protocol is a multi-chain DEX (decentralised exchange) that allows bridging between 16 networks.
On Synapse, you can bridge, trade and stake on 15 different networks - Arbitrum, Aurora, Avalanche, Boba Network, Binance Smart Chain, Cronos, Ethereum, Klaytn, DFK Chain, Harmony, Fantom, Terra, Polygon, Metis, Moonbeam, Moonriver & Optimism.
Harmony One & Cronos RPC details for Metamask
Before you bridge crypto from Harmony One to Cronos, you will need to add both networks to your Metamask wallet. Below you will find the RPC details for both networks.
The fastest and most affordable way to bridge crypto from Harmony One to the Cronos network is through Synapse Protocol. In the below example, we use SYN as the bridging token but there are a variety you can choose from. Follow the steps to get started.
Connect your Metamask Web3 wallet to Synapse
Select Harmony and Cronos as your two networks
Find the token you want to bridge and enter the amount
Approve the transactions on your Metamask and the funds will appear in your wallet within minutes
What tokens can I bridge from Harmony One to Cronos?
As Harmony One was the subject of a huge cyber attack, many tokens are unavailable to withdraw from the network. And ones that can be withdrawn may be subject to extreme negative slippages. Refer to the list below for the available tokens and slippage tolerances.