1. 虚拟专用网(VPN)：
虚拟专用网络 (VPN) 是一种允许更改 IP、绕过在线审查限制以及仅通过 VPN 连接安全和匿名浏览 Internet 的技术。它为您的在线数据创建了一个安全的虚拟隧道，因此公司只允许通过 VPN 连接从外部访问其内部网络。它计划通过公共通信网络传输机密信息，例如电子邮件。
2. 接入点名称(APN)：
接入点名称 (APN) 是一种技术，它为移动电话提供连接到另一个计算机网络(通常是公共互联网)所需的信息。它包含一组规则，相应的电话运营商需要知道这些规则才能让您的手机建立无线连接。如果有自定义 APN，他负责配置安全级别，这有助于确定无线提供商的安全级别。
VPN和APN的区别：
| S.No. | VPN | APN |
|---|---|---|
| 01. | VPN stands for Virtual Private Network. | APN stands for Access Point Name. |
| 02. | It is a technology which allows to change IP, bypass online censorship restrictions, and browse the Internet securely and anonymously only via a VPN connection. | It is a technology which supplies a mobile phone with the information required to connect to another computer network often the public Internet. |
| 03. | It creates a secure virtual tunnel for your online data so companies allow external access to their internal networks only via a VPN connection. | It comprises a set of rules that respective phone carrier needs to know to let your phone establish a wireless connection. |
| 04. | This VPN technology uses the internet to transfer information using secure methods. | This APN technology protects confidential information being sent over a public telecommunications network. |
| 05. | It works over an existing public network, and only works if the user has another means of connecting to the Internet. | It directly connects users to the Internet and also allows the user connect to the external network with which it is associated. |
| 06. | If someone knows the details such as server name, account and password then it may be possible to connect a VPN from a mobile with action support. | It is a unique network which needs be programmed into one’s cellphone before he/she can connect. |
| 07. | These are mainly designed for the transmission of confidential information. | These are mainly designed for the wireless provider. |
| 08. | It is planned for transmission of confidential information, such as email, over a public communication network. | If one have a custom APN, he is responsible for configuring the level of safety means it helps in determining level of safety on the wireless provider. |