On Wednesday morning, the Bitcoin Core development team released a rare statement concerning the safety of Bitcoin users’ coins during the potential hard fork for Segwit2x, which is scheduled to occur in November.
The developers state that the hard fork is not supported by the majority of the Bitcoin users and developers, which makes it contentious, and therefore puts many user's bitcoins at risk if they store them with the wrong services. “By adopting this hard fork,” the announcement states, “we believe the supporters of this agreement are shifting their users to an alternative currency (an altcoin) which is incompatible with Bitcoin.”
Bitcoin’s developers strongly advise against storing coins on services such as Coinbase, Bitpay and Xapo since the coins may be renamed to something else or replaced with a new altcoin that is not bitcoin. Currently, 43 services intend to leave bitcoin for the new blockchain