Title: "Security check failed"
Last modified: August 21, 2016

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# "Security check failed"

 *  Resolved [jennwren](https://wordpress.org/support/users/jennwren/)
 * (@jennwren)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/security-check-failed-3/)
 * Hi,
    I’ve been away from work for a day or two, and when I returned today and
   tried to add a new event to the calendar, it went to a page that just says “Security
   check failed” and the event does not appear in the calendar. I’m not sure what
   could be going wrong, since everything was working very well the last time I 
   was in there. Any ideas? Jenn
 * [http://wordpress.org/plugins/my-calendar/](http://wordpress.org/plugins/my-calendar/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [jennwren](https://wordpress.org/support/users/jennwren/)
 * (@jennwren)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/security-check-failed-3/#post-4437299)
 * Okay that was strange… today it’s working no problem.
 * I guess you can disregard my message!
 * 🙂
 *  Plugin Author [Joe Dolson](https://wordpress.org/support/users/joedolson/)
 * (@joedolson)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/security-check-failed-3/#post-4437316)
 * If you were away for a couple days, and didn’t refresh the screen, then you had
   an out of date nonce (number used once), which is a security feature that makes
   sure that requests are valid. They expire, so if it sits too long, you’ll get
   a security check failure, exactly as you did.
 *  Thread Starter [jennwren](https://wordpress.org/support/users/jennwren/)
 * (@jennwren)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/security-check-failed-3/#post-4437320)
 * That makes sense.
 * Hey ~ I just wanted to tell you that this calendar is absolutely perfect for 
   our needs. Thank you for being so thorough in your design and development and
   for covering so many important details that no one else has thought to put into
   a calendar. Great job.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘"Security check failed"’ is closed to new replies.

 * ![](https://ps.w.org/my-calendar/assets/icon-256x256.png?rev=1097576)
 * [My Calendar - Accessible Event Manager](https://wordpress.org/plugins/my-calendar/)
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## Tags

 * [security check failed](https://wordpress.org/support/topic-tag/security-check-failed/)

 * 3 replies
 * 2 participants
 * Last reply from: [jennwren](https://wordpress.org/support/users/jennwren/)
 * Last activity: [12 years, 5 months ago](https://wordpress.org/support/topic/security-check-failed-3/#post-4437320)
 * Status: resolved