Virtual private networks (VPNs), which date back to the 1990s, are often used “to securely connect remote workers to the enterprise network or to connect multiple remote sites to one another,” explains Josh Fruhlinger.
“VPNs remain popular today, but they are also slowly but surely being supplanted by more flexible, more secure, more granular alternatives, such as SD-WAN and Zero Trust Network Architecture (ZTNA) … Another emerging use case is to connect Internet of Things (IoT) devices to a network,” Fruhlinger says.
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