The largest Bitcoin payment processor in the world, BitPay, issues a statement confirming that in case of the SegWit2x hardfork the "services will follow the chain with the most accumulated difficulty".
How Segwit2x Affects BitPay and Copay Users | The BitPay Blog https://t.co/vKYIQiJ85X
— BitPay (@BitPay) 31 октября 2017 г.
The company argues that it does its best to continue to provide service on the Bitcoin blockchain. However, absent any further developments, BitPay recommends users' stopping using Bitcoin prior to block 494,784 and until the uncertainty is resolved.
As detailed, the services will suspend payment acceptance, payment disbursement and debit card reloads approximately 24 hours prior to activation of Segwit2x.
In the event of a prolonged or permanent chain split, if the minority chain has significant market value, we will provide instructions to Copay and BitPay wallet users on how to safely access those coins. We will refer to the minority chain as BC1 (if Segwit2x is the majority) or BC2 (if Segwit2x is the minority). Beyond that, we have no plans to offer our services on the minority chain.
The company claims it will resume full support for the Bitcoin blockchain as soon as possible after the event.