采用与政府和军事机构相同级别的AES-256位加密技术，RSA-4096密钥交换，HMAC-SHA256数据完整性验证。您的数据在传输过程中受到最高级别的保护，即使被截获也无法解密。Uses the same AES-256 encryption as government and military agencies, RSA-4096 key exchange, HMAC-SHA256 data integrity verification.
Secure Core是ProtonVPN独有的双重VPN架构，流量先经过位于瑞士、冰岛或瑞典的安全核心服务器，再到达目标服务器。即使出口服务器被攻破，攻击者仍无法追溯到您的真实身份。Secure Core is ProtonVPN's unique double VPN architecture, traffic first passes through servers in Switzerland, Iceland or Sweden before reaching the destination.
NetShield是ProtonVPN内置的广告和恶意软件拦截功能，在DNS层面阻止广告、跟踪器和恶意网站。无需额外安装浏览器插件，自动保护您免受广告骚扰和网络钓鱼攻击。NetShield is ProtonVPN's built-in ad and malware blocker, blocking ads, trackers and malicious sites at DNS level.
VPN Accelerator是ProtonVPN的独家加速技术，通过多核并行处理、压缩算法优化和协议改进，将VPN速度提升最高400%。让您在使用VPN时几乎感受不到速度损失。VPN Accelerator is ProtonVPN's exclusive acceleration technology, boosting VPN speed up to 400% through multi-core parallel processing and optimization.
每次VPN连接都使用独立的会话密钥，即使长期密钥被泄露，过去的通信记录仍然安全。攻击者无法解密任何历史数据，确保您的在线活动永久保密。Each VPN connection uses independent session keys. Even if long-term keys are compromised, past communications remain secure.
ProtonVPN所有服务器都支持Tor网络访问，无需额外配置即可通过VPN连接Tor匿名网络。双重匿名保护，让您的在线身份更加难以追踪。All ProtonVPN servers support Tor network access, connect to Tor anonymizing network through VPN without extra configuration.
当VPN连接意外断开时，Kill Switch会立即切断所有网络流量，防止真实IP地址泄露。提供应用级和系统级两种模式，确保任何情况下都不会暴露您的网络活动。When VPN disconnects unexpectedly, Kill Switch immediately cuts all network traffic to prevent real IP leakage.
分流隧道允许您选择哪些应用通过VPN加密传输，哪些直接连接互联网。例如，可以让浏览器走VPN保护隐私，而本地应用直接连接保持速度。Split tunneling lets you choose which apps go through VPN encryption and which connect directly to the internet.
ProtonVPN Plus版支持解锁Netflix、Disney+、HBO Max、BBC iPlayer等全球流媒体服务。专用流媒体服务器确保高清流畅观看体验，不受地区限制。ProtonVPN Plus supports unblocking Netflix, Disney+, HBO Max, BBC iPlayer and other global streaming services.
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