Value of Bitcoin plummets
Hackers stole $65m (£49m) of digital currency Bitcoin yesterday.
This led to Hong Kong-based exchange Bitfines halting trading, withdrawals and deposits after discovering the security breach.
According to various media reports, hackers managed to steal 119,756 bitcoin, which are worth around $543 (£408) each.
In a blog post Bitfinex said: “Today we discovered a security breach that requires us to halt all trading on Bitfinex, as well as halt all digital token deposits to and withdrawals from Bitfinex.
“We are deeply concerned about this issue and we are committing every resource to try to resolve it.
“We ask for the community’s patience as we unravel the causes and consequences of this breach.”