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What Is Encryption and Why Does It Matter for Your Privacy?

Bolt VPN Team|2025-12-20
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What Is Encryption and Why Does It Matter for Your Privacy?

What Is Encryption?

Encryption is the process of converting readable data into an unreadable format that can only be decoded with the correct key.

Think of it like a secret language that only you and the intended recipient understand.

How Encryption Works

The Basic Process

1. Plaintext - Your original, readable data

2. Encryption algorithm - Mathematical formula that scrambles the data

3. Encryption key - The secret code used to encrypt/decrypt

4. Ciphertext - The scrambled, unreadable result

Types of Encryption

#### Symmetric Encryption

Same key encrypts and decrypts. Fast but key sharing is challenging.

#### Asymmetric Encryption

Public key encrypts, private key decrypts. More secure for communication.

Encryption in VPNs

VPNs use encryption to protect your internet traffic. Common VPN encryption includes:

AES-256

  • Military-grade encryption
  • 256-bit key length
  • Would take billions of years to crack

ChaCha20

  • Used in WireGuard protocol
  • Faster on mobile devices
  • Equally secure as AES-256

Why Encryption Matters

Protects Your Data

Even if intercepted, encrypted data is useless to attackers.

Secures Communications

Emails, messages, and calls stay private.

Enables Online Commerce

Credit card transactions depend on encryption.

Preserves Privacy

Your ISP and hackers can't read encrypted traffic.

Bolt VPN's Encryption

Bolt VPN uses WireGuard's ChaCha20 encryption, providing:

  • Lightning-fast performance
  • Unbreakable security
  • Low battery consumption

Your data is safe with Bolt VPN.

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