Circle tweets became public

Twitter admitted a security flaw that made 'Circle' tweets public. Circle tweets are usually only visible to a subset of followers/friends.

Uncomfortable situations

A bug led to private tweets being seen by people outside the intended Circle, leading to uncomfortable situations for many.

One-month-old issue

Twitter Circle users first discovered the flaw in April. Individuals outside people's Circles were able to like posts intended for specific users.

For You

Twitter Circle tweets were visible on the "For You" timeline after a security breach, allowing non-Circle followers to react and respond.

Issue fixed

Circle tweets appeared publicly without the green banner, but the issue has been fixed. The retweet button remains greyed out for non-public tweets.