Beyond the VPN: Zero Trust Access in a Federal Hybrid Work EnvironmentBEYOND THE VPN: ZERO TRUST ACCESS IN A FEDERAL HYBRID WORK ENVIRONMENT 2 ©2021 Zscaler, Inc. All rights reserved. The virtual private network (VPN) has been a powerful tool in the network security administrator’s toolbox for decades, because it has provided a means for remote computers to communicate securely across an untrusted network such as the internet. Whether for branch offices communicating with headquarters (site- to-site), or an employee working from home (remote access), the VPN provided a secure point-to-point tunnel back to resources on protected networks. VPNs were an effective tool for federal agency security when the majority of network traffic was on-premises. When VPNs were introduced in the late

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