The short story: This morning at 2:54 am PDT Twitter was notified of a security exploit that surfaced about a half hour before that, and we immediately went to work on fixing it. By 7:00 am PDT, the primary issue was solved. And, by 9:15 am PDT, a more minor but related issue tied to hovercards was also fixed. The longer story: The security exploit that caused problems this morning Pacific time wa
![All about the "onMouseOver" incident](https://cdn-ak-scissors.b.st-hatena.com/image/square/4f3072d7d302c3605bc8f83324ce8ec3ef49708f/height=288;version=1;width=512/https%3A%2F%2Fcdn.cms-twdigitalassets.com%2Fcontent%2Fdam%2Fblog-twitter%2Fx%2Fblog_x_card.png.twimg.768.png)