You could face up to eight years in jail for spreading rumours considered prejudicial to security.

散布危害社会安全的谣言会面临高达8年的监禁。

《柯林斯英汉双解大词典》

Are you spreading rumours again?

你又在散播谣言吗？

youdao

Don't blacken my name by spreading rumours.

别散布谣言败坏我的名声。

youdao

For girls, most staff said bullying such as isolating another pupil from a friendship group, spreading rumours, making snide looks and comments, were the biggest problems (44%).

BBC: Girls' behaviour in class is 'deteriorating'

Turning to domestic news, the Beijing News says a woman, surnamed Ma, has been arrested for "spreading rumours" about a female migrant worker from Anhui province, surnamed Ms Yuan, who was found dead outside a wholesale market building in Beijing's Fengtai district last Friday.

BBC: China media: Boat attack condemned

Spreading false rumours with the intention of manipulating share prices is to be deplored.

ECONOMIST: Short-selling