- Twitter says a ‘security incident’ led to private Circle tweets becoming publicEngadget
- Twitter Circle ‘security incident’ made private tweets publicBusiness Insider
- Twitter admits to a security breach that allowed everyone to see Twitter Circle tweetsNeowin
- Twitter admits ‘security incident’ led Circle tweets showing for others: ReportTimes of India
- Twitter notifies ‘affected users’ over privacy breach exposing ‘Circle’ messagesAlterNet