The most important details of the incident with the South Korean exchange.
The exchange planned to distribute a bonus of about 2,000 KRW, but due to an error, the system indicated BTC instead of won.
The internal balances of users reflected huge amounts of bitcoin — a total of about 620,000 $BTC .
These were not withdrawn coins, but balances within the exchange, although some users managed to sell them.
On the exchange itself, the price of BTC temporarily fell to -17%.
The exchange halted trading, froze affected accounts, and returned about 99.7% of the funds.
There was no hacking — it was purely an operational error.
Conclusion:
infrastructural failures can move prices more strongly than news.
