KeyFly is a Conditional Access System developed and marketed by SIDSA. KeyFly 1.0 is considered partially compromized but KeyFly 2.0 is still considered secure (June 2009). The KeyFly CAS is for digital satellite, cable and terrestrial TV. It supports all typical pay-TV business models, depending on third party business platform, but has its strongest point in the maximum security level it provides, even against card-sharing, and in a renewable at no cost.
The system does not use smart-card, all security is handled inside an ultra-secure chipset (see above). KeyFly is Highly interoperable and compatible with related technologies and based on open standards, such us simulcrypt, xml, web services etc.