Twitter on Thursday urged its more than 300 million users to change their passwords

Twitter on Thursday urged its more than 300 million users to change their passwords, saying they had been unintentionally “unmasked” inside the company by a software bug.
Japan Today

HINTS
S Twitter ([on] Thursday)
V [urged] 急き立てる
O its more than 300 million users
V [to change]
O their passwords
,

補足
[saying]

S they
V [had been]
O unintentionally “unmasked” 意図されず
inside the company 社内で
補足
[by] a software bug. ソフトウェアのバグによって

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