Japanese authorities Thursday ordered two cryptocurrency exchanges to suspend operations as part of a clampdown following a massive hack that saw thieves steal hundreds of millions of dollars in virtual currency.
Japan Today

HINTS
S Japanese authorities (Thursday)
V [ordered] 命じました
O two cryptocurrency exchanges 通貨交換
C [to suspend] operations
動作の一時停止

as part of a clampdown 取り締まり
V [following]
O a massive hack 大きな痛手

hackの説明
that
V [saw]
O thieves
steal (hundreds [of] millions [of] dollars)
盗む

補足
[in] virtual currency.
仮想通貨で