Bitcoin Cash November 2018 Hard Fork Advisory

The Bitcoin Cash blockchain undergoes a hard fork quite regularly, about twice a year, to integrate scheduled protocol upgrades. So far, these hard forks went unnoticed as they were consensual. However, this time the BCH developer community did not come to a consensus regarding the future of BCH.

Therefore, please be advised that the next Bitcoin Cash hard fork, set to occur around 04:40 PM UTC on November 15th, 2018, may result in two independent blockchains.

If you are a Trezor user with bitcoin cash holdings, there are a couple of things you should be aware of regarding the hard fork:

1. We do not recommend transacting shortly before and in the following days after the hard fork until things settle.
2. Our Trezor Wallet servers run the Bitcoin ABC (Bitcoin Cash) nodes and will follow the Bitcoin ABC chain. If you need to transact on the ABC chain, you can use our service. It cannot be guaranteed the transaction will appear on other chains. On the other hand, it cannot be guaranteed it will not appear on other chains, either. Be careful!
3. Because Bitcoin Cash developers have not implemented protection against replay attacks, we will not provide a claiming tool for safe coin-splitting between chains. If a different chain emerges, you will automatically have coins available on all chains after the hard fork (not replay-protected).
4. If a different chain (than Bitcoin ABC) becomes dominant, we will evaluate switching from the current chain to the dominant chain. This does not affect the safety of your coins. If you do not transact around the time of the fork and after it, you will have access to your coins in every scenario.
5. Electron Cash (https://electroncash.org/) supports Trezor and supports all chains, so you can select the server supporting the chain you want to use.

Thank you for your understanding.

For up-to-date information, please follow our Twitter feed: Trezor

Security advisory

If you decide to move your bitcoin cash before or during the days after the fork, please opt for a safe and tested wallet. Be extra careful with your recovery seed, as it is the access key to all of your coins, not just BCH.

Do not trust third-party splitting tools or too-good-to-be-true offers.

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