Replaces: McAfee SiteAdvisor Plus
Downloaded more than 33 million times, this popular add-on for Firefox, Internet Explorer, Chrome, Safari or Opera lets users know when they've strayed into websites that are questionable or insecure. It utilizes user ratings to identify sites that perpetuate scams, collect personal information or include unsuitable content, and it ranks them with a green-yellow-red classification system. Operating System: Windows, Linux, OS X.
Replaces Kaspersky Password Manager, Roboform
Using the same password all the time puts you at risk, but many people do it anyways because it's so difficult to remember a lot of different passwords. This browser add-on offers a better solution for the problem by creating unique passwords for each site you visit and storing them in an encrypted file that you access with a single master password. Operating System: Windows, Linux, OS X.
21. BleachBit
Replaces Easy System Cleaner
This helpful utility cleans up your system to protect your privacy and improve performance. It frees up disk space by cleaning junk from more than 90 applications, erasing temporary files, deleting cache and browsing history, and "shredding" unwanted files. Operating System: Windows, Linux.
22. Eraser
Replaces BCWipe Enterprise
Like BleachBit, Eraser "shreds" deleted files so that they cannot be recovered. It helps protect sensitive information by rewriting over deleted files several times with random data. Operating System: Windows
23. Wipe
Replaces BCWipe Enterprise
Wipe offers the same functionality as Eraser, but it's for Linux instead of Windows. The site also offers a wealth of information for those interested in learning more about how file "shredding" works. Operating System: Linux.
Replaces Kill Disk, BCWipe Total WipeOut
While Eraser and Wipe delete single files, DBAN securely deletes entire disks. It's very helpful when donating or disposing of an old system. Operating System: OS Independent.
25. OpenDLP
Replaces RSA Data Loss Prevention Suite, CheckPoint DLP Software Blade, Symantec Data Loss Prevention Product Family
OpenDLP is a "agent- and agentless-based, centrally-managed, massively distributable data loss prevention tool." It allows security or compliance managers to scan thousands of systems simultaneously via agents or perform agentless data discovery against a MySQL or Microsoft SQL server. Operating System: Windows.
26. MyDLP
Replaces RSA Data Loss Prevention Suite, CheckPoint DLP Software Blade, Symantec Data Loss Prevention Product Family
MyDLP can block credit card numbers, social security numbers, or sensitive files from being transmitted via e-mail, printers, the Web or removable devices. In addition to the free community version, it also comes in a paid enterprise version. Operating System: Windows, Linux, VMware.
27. AxCrypt
Replaces McAfee Anti-Theft, CryptoForge
With nearly 2.5 million registered users, AxCrypt claims to be the "leading open source file encryption software for Windows." It integrates with Windows Explorer—to use it, you simply right-click to encrypt a file or double-click to decrypt. Operating System: Windows.
Replaces PGP Universal Gateway Email Encryption
This Gnu project is a command-line implementation of the popular OpenPGP encryption standard. It supports ElGamal, DSA, RSA, AES, 3DES, Blowfish, Twofish, CAST5, MD5, SHA-1, RIPE-MD-160 and TIGER encryption algorithms. Operating System: Linux.
29. GPGTools
Replaces PGP Universal Gateway Email Encryption
Mac users can download this version of GPG for a more user-friendly way to encrypt e-mail and files. The website includes quite a bit of help and tutorials for new users, which make it even easier to get started using the app. Operating System: OS X.
30. gpg4win
Replaces Cypherus
And this version offers GPG for Windows users, complete with a GUI. It installs quickly and easily, and it protects both files at rest and mail messages. Operating System: Windows.
31. PeaZip
Replaces WinZip
While it's really a compression utility not an encryption tool, PeaZip also offers strong encryption capabilities, which is why we included it in this section of the list. It also includes two-factor authentication capabilities and secure deletion. Operating System: Windows, Linux.
32. Crypt
Replaces McAfee Anti-Theft, CryptoForge
At just 44KB, Crypt is one of the lightest weight encryption utilities available. And because it can encrypt 3MB worth of data in just 0.7 seconds, it's also one of the fastest. However, it doesn't have a GUI, so you'll need to be comfortable with the command line in order to use it. Operating System: Windows.
33. NeoCrypt
Replaces McAfee Anti-Theft, CryptoForge
NeoCrypt supports multiple encryption algorithms, including AES, DES, Triple-DES, IDEA, RC4, RC5, CAST-128, BlowFish, SkipJack. It runs from an easy-to-use GUI, and it also integrates with the Windows Shell so that you can encrypt and decrypt files right from Windows Explorer. Operating System: Windows.
34. LUKS/cryptsetup
Replaces PGP Whole Disk Encryption
Short for "Linux Unified Key Setup," LUKS calls itself "the standard for Linux hard disk encryption." While many of the other apps on our list encrypt files one by one, LUKS encrypts your entire drive. Operating System: Linux.
35. FreeOTFE
Replaces PGP Whole Disk Encryption
Like LUKS, this app encrypts an entire drive. With it you can create and encrypt virtual disks on your hard drive. It's also highly portable and can run from a thumb drive. Operating System: Windows.
36. TrueCrypt
Replaces PGP Whole Disk Encryption
One of the most popular open source disk encryption options, TrueCrypt boasts more than 22 million downloads. Thanks to parallelization and pipelining technology, it offers fast reads and writes 0f encrypted information. Operating System: Windows.