The single most important factor for cloud adoption of video surveillance is cybersecurity.
Cloud provides convenience, but how much risk are you willing to take? Traditionally, the most security-concerned sites are disconnected from the Internet for obvious reasons.
Unlike IT, video surveillance is typically managed by a third party. With outside management, the question is, do they have the trained staff and sound operational practices to prevent hacking? Adding the VSaaS provider and the public cloud, there are three organizations that have access to your videos. Where is the weakest link? Can you just trust them to do the right thing?
Is there a trust-no-one cloud solution? Yes! Please check out NFDHybrid cloud.