Change in iFrame embed method

I see that you all adjusted your iFrame, where's the "secure" option check box?

All new forms are now secured by default. We announce this through our blog: 

http://www.jotform.com/blog/175-All-Forms-are-Now-Secure-by-Default-The-SSL-Limits-on-Free-Accounts-are-Lifted- 

Simply re-embed your form and that's it. Here's our guide for iframe embed: http://www.jotform.com/help/148-Getting-the-Form-iFrame-Code.

Thanks