Abstract: Provided is a security unit comprising at least one security container conjoined to at least one appliance unit. A security container comprises a base, a closure, and an engagement element. The closure is affixable to the base and is lockably and releaseably attached to the base by an engagement element. The appliance unit may be any common appliance including, but not limited to a refrigerator. The security unit is optionally fireproof and waterproof.