The challenge of replacing MPLS with broadband connections is that public networks are often less reliable, which can be a serious problem for digital enterprises and users who need instant access to resources and data.
In addition, nearly 90% of organizations have implemented a cloudy strategy, and each cloud needs its own independent connection. As a result, most SD-WAN-deployed enterprises use multiple broadband links to connect enterprise branches to the core network and to the cloud. However, each connection expands the potential attack surface.
In addition, enterprises are increasingly deploying cloud-based SaaS applications so that employees can collaborate with maximum efficiency, and these connections often contain critical information that needs to be protected.
Therefore, using VPN as a transport security overlay becomes an integral part of the SD-WAN solution. Of course, it is also essential to provide very high performance and dynamic scalability through a VPN solution.
Must check encrypted traffic
In a digital environment, only a secure connection is not enough. As SSL (HTTPS) traffic increases, an attacker hides malicious software in an encrypted tunnel to evade detection.
Unfortunately, most SD-WAN vendors offer only basic security, do not provide SSL detection, or provide insufficient SSL detection to defend against attacks, which is the most common error for enterprises deploying SD-WAN
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