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Prevents detection of keystrokes by a key logger by encrypting keyboard entries. Available in three different versions (personal, professional and premium); the free personal edition protects entries in Firefox, Internet Explorer, Flock and online email services, as well as in Java, Flash and browser dialogues.

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Simulates 12 models of the cipher machine Enigma, as well as the Enigma Uhr on an HTML site with Javascript. Offers a total of 42 rotors, ten reflectors, three stators, two extra wheels and two drive mechanisms, which can be put in any combination. Includes the same adjustment capabilities as the original, switchable plugboard, with auto-verification and a monitor displaying the signal path.

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Classic tool for establishing a private VPN connection. Encrypts data and allows the user to surf the web anonymously (without sending out their IP address). Offers secure surfing at public hotspots and bypasses firewalls. Also available as an enhanced premium version which is faster and has support for OpenVPN, PPTP and L2TP/IPSec, as well as various servers in the US.

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Open-source porting for GNU Privacy Guard (GnuPG) 1.x in the form of a simple installation package for Mac OS X. Fast and secure download from The H

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A secure, mobile Linux live operating system that runs from CD or USB stick and protects your privacy while you’re using the internet. Also protects communications and ensures you can edit and encrypt private data securely. Its standard applications are complemented by the integration of data protection and encryption programs. Private data and settings are encrypted and saved to a USB stick.

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Protects trusted data in emails and folders through encryption, enables the hard drive to be fully encrypted using pre-boot authentication. Downloading the software requires the user to enter personal information.

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Encrypts files. Supports the Blowfish, DES, 3DES, AES and RC4 algorithms.

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Ensures your internet connection remains encrypted when surfing using public WLAN hotspots and prevents it being eavesdropped on by outsiders, by setting up a VPN connection to the manufacturer’s internet gateway. Also available as an iOS version.

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Creates one or more virtual disk drives the data on which is automatically encrypted before being saved. Can also be started from a USB stick so doesn’t require installation. The data can also be read in Linux systems by means of dm-crypt.

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Generates virtual disk drives or encrypted partitions and hides their contents. Primarily designed to protect data held on USB sticks. Can run from a USB stick without installation. Despite German-only web site, program is available in several languages, including English.

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Steganography program that allows you to hide files in graphic images. Provides encryption and hashing functions.

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Email encryption with PGP for securing data while you’re on the move. Limited version available for free.

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Encrypts data by drag & drop using the safe Twofish encryption algorithm. Requires no installation and can be run directly from USB drive.

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Protects files and folders with a password and encrypts them; supports 13 encryption processes.

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Program for encrypting password-protected PDF documents.

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