Per Nikkei's report, the closures won't occur
until user funds have been withdrawn or otherwise returned.
Not exact matches
Bitfinex will halt all trading, deposits and withdrawals at the time of the hard fork and those services will remain unavailable
until Bitfinex can secure their
user's
funds.
However the fact that
users are also required to create and
fund a trading account has been conveniently left out of the picture
until the very end of the registration process.
Bitcoin Exchanges and
users can set their own threshold as to how many confirmations are required
until funds from the transferor are considered valid.
However, Kickstarter
users are not actually charged
until a project's
funding deadline hits, so you're not actually sending money
until the project is a definite «yes,» which is part of what made it appealing to me.
On this sidechain,
users could transact freely and privately for as long as they want,
until the new owner decides to «move» the
funds back to the Bitcoin blockchain by unlocking the original output.
The volume of the malformed transactions forced the targeted exchanges to spend most of their time recalculating
fund balances to match the official Bitcoin blockchain, and while the integrity of the official ledger wasn't compromised, the sites were forced to cease processing withdrawal requests
until they could get a handle on things, which left many
users fuming.
Until a potential solution is found, customer accounts have been frozen, leaving
users without the option to withdraw their digital
funds.