FreeGuard encrypts all your internet traffic with TLS 1.3 encryption using anytls, hysteria2, or trojan protocols. These modern protocols provide strong encryption while resisting detection and blocking by network censors.
Modern VPN Encryption — TLS 1.3 & Anti-Detection Protocols
How VPN Encryption Protects Your Data From Interception
VPN encryption creates an unreadable tunnel around your internet traffic, preventing ISPs, hackers on public Wi-Fi, and network operators from seeing what you send or receive.
When you connect to FreeGuard VPN, every byte of data between your device and the VPN server is encrypted. This means anyone monitoring the network — your ISP, a hacker on the same Wi-Fi, or a network administrator — sees only meaningless encrypted data.
The encryption process works in two layers. First, a secure key exchange establishes a unique encryption key for your session. Second, all data is encrypted with TLS 1.3, which uses modern cipher suites that provide both confidentiality and forward secrecy.
This protects against several real threats: ISP surveillance and data selling, man-in-the-middle attacks on public Wi-Fi, government mass surveillance programs, and corporate network monitoring. Without encryption, all these entities can read your web traffic, emails, and application data in plain text.
hysteria2 vs anytls vs trojan: Protocol Comparison for Speed and Security
hysteria2 offers the fastest speeds using QUIC/UDP transport, anytls provides TLS-based anti-detection, and trojan mimics standard HTTPS traffic. FreeGuard supports all three.
hysteria2 is a UDP-based protocol built on QUIC, optimized for speed and performance. It excels in high-latency and lossy network conditions, achieving significantly higher throughput than TCP-based protocols.
anytls is a TLS-based anti-detection protocol that makes VPN traffic indistinguishable from normal HTTPS browsing. It is highly effective at bypassing deep packet inspection and network censorship.
trojan mimics standard HTTPS traffic, making it extremely difficult for network censors to detect and block. It provides reliable access in heavily restricted network environments.
FreeGuard supports all three protocols, letting users switch between them in settings based on their needs. All three use TLS 1.3 encryption for strong security.
Understanding Perfect Forward Secrecy and Why It Matters
Perfect forward secrecy ensures that even if an encryption key is compromised in the future, previously recorded encrypted traffic remains unreadable.
Perfect forward secrecy (PFS) is a property of key exchange protocols that generates a unique encryption key for each session. If an attacker records your encrypted traffic and later obtains a server's private key (through a breach, legal order, or technical exploit), they still cannot decrypt your past sessions.
Without PFS, compromising a single key could unlock an entire history of recorded traffic. With PFS, each session uses a different key derived from ephemeral key pairs that are discarded after use.
FreeGuard implements PFS in all three protocols — hysteria2, anytls, and trojan — through TLS 1.3 key exchange. Every time you connect, a new session key is generated and the old one is permanently discarded.
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TLS 1.3 encryption, used by modern VPN protocols like hysteria2 and anytls, provides forward secrecy by default and has eliminated legacy cipher suites vulnerable to known attacks. — IETF (2024)
The hysteria2 protocol achieves high throughput by leveraging QUIC's UDP-based transport, while anytls and trojan protocols provide strong anti-detection capabilities by mimicking standard HTTPS traffic. — IETF QUIC Working Group (2024)
Over 95% of internet traffic is now encrypted with HTTPS, but a VPN adds an additional encryption layer protecting metadata and DNS queries. — Google Transparency Report (2024)
Public Wi-Fi networks remain vulnerable to man-in-the-middle attacks; a 2024 study found 34% of public hotspots lack proper security configuration. — Kaspersky Research (2024)