Twitter Inc said on Tuesday that it may have used data for personalised ads without a user's permission due to issues with the microblogging website's settings. {"preview_thumbnail":"https://cdn.flowplayer.com/6684a05f-6468-4ecd-87d5-a748773282a3/i/v-i-d…","video_id":"d78ef9ea-48bb-4601-94a8-27ec5ac7f708","player_id":"8ca46225-42a2-4245-9c20-7850ae937431","provider":"flowplayer","video":"Richest & Poorest Arab Countries"} The company said it recently discovered those issues and fixed them on Monday, although it hasn't yet determined who may have been impacted. Consumer data is a powerful tool that companies use to decide where to place advertisements, what ...