21. Rumours of censorship led to increasing use of virtual private networks ( VPNs ) during the protests. 22. There are ways to make wireless networks more secure, such as installing virtual private networks , or VPNs. 23. The market for virtual private networks is about $ 1 . 5 billion this year, Moore said. 24. The DREN WAN service provider has built DREN as a virtual private network based on its commercial infrastructure. 25. Such virtual private networks reduce a company's costs by requiring less networking equipment and trimming overall telephone costs. 26. MS-CHAP is used as one authentication option in Microsoft's implementation of the PPTP protocol for virtual private networks . 27. However, if choosing to access VPC via a Virtual Private Network ( VPN ), there is a charge. 28. Home PC : Same as above, with DSL connection and virtual private network access to WR Hambrecht's systems. 29. The subject was virtual private networks . 30. Additionally, communications with the OBeP network take place on a virtual private network , not over the public Internet.
