Hey mods,
Over the last two days, I have received this message several times:

Your submission could not be processed because a security token was missing.

If this occurred unexpectedly, please inform the administrator and describe the action you performed before you received this error

I wasn't doing anything particularly remarkable at the time and reloading a few times seemed to work, but I'm curious if there is some simple solution to keep it from happening and save those precious extra minutes of my life. I'm also curious what a security token is.

Thank you!!