Twitter’s chief executive has taken personal responsibility for the social network’s problems in dealing with abuse reported by users.

A man and a woman have been jailed for subjecting a high-profile feminist to online abuse.

A man and a woman have been jailed for subjecting a high-profile feminist to online abuse.

Two people have pleaded guilty to sending “menacing” tweets to a feminist campaigner following her successful campaign to ensure a woman features on British banknotes.