Unauthorized mod upload on my mod page (wot?!) Thread

Hello everyone.

In the last days in one of my mods I've made some needed fixes. Today I open my mod page and see someone uploaded an old, slightly broken, version of my mod in my own mod page. Haven't authorized such thing, I've promptly deleted it. The user name, IIRC, was named something like "Revenant" (if I hadn't panicked I would have keep note of that before deleting that file).

Is this possible? How can I prevent it in the future?

Sorry for everything I did wrong (uncorrect english, wrong place to post this, noob question....)

-On your page were that file is, on download file page, disable that button +Add mod from the right for others, find the way. But then what's the point man.

Thanks, I've disabled that. Didn't know it was an option and it was active....