Honda said Wednesday it had temporarily halted production at plant in Japan after it suffered a cyberattack from the same ransomware that struck hundreds of thousands of computers worldwide last month.
V [had (temporarily) halted] 一時的に止まり
O production どんな → [at] plant どんな → [in] Japan
O a cyberattack どんな → [from] the same ransomware
どんな → [that]
V struck 一撃を加えた。
O hundreds [of] thousands [of] computers 何十万のコンピューターに
worldwide (last month).