SICA MG stands for Silicate Illusion Certification Authority Management Group. SICA MG handles all the Security Certificate creation and revocation for Silicate Illusion. This includes, but is not limited to: SSL Certificates, Personal Identity Certificates, Email Certificates, and a whole host of other certificates used to identify legitimate Silicate Illusion users and services. These Certificates are self signed and therefore only of use to the Silicate Illusion Ring of Trust. A copy of the SICA Root certificate is available for download by users wishing to obtain a copy under the downloads section of SICA MG.
If you have any more questions pertaining to SICA MG, or what a Certificate Authority (CA) is, then please visit the SICA FAQ Section.