- AMaViS-ng is a modular rewrite of amavisd and amavis-perl. It scans email for malicious code inside attachments and archive files, stopping delivery if malicious code is found. It supports integration of several third-party virus scanners and integrates nicely into several MTA setups. Unlike amavis-perl and amavisd, there is no need for build-time configuration
- Adblock Plus
Blocks banners, pop-ups, tracking, malware. By default, nonintrusive ads aren't blocked in order to support websites.
The add-on is supported by over forty filter subscriptions in dozens of languages which automatically configure it for purposes ranging from removing online advertising to blocking all known malware domains. Adblock Plus also allows you to customize your filters with the assistance of a variety of useful features, including a context option for images, a block tab for Flash and Java objects, and a list of blockable items to remove scripts and stylesheets.Starting with Adblock Plus 2.0 there is an option in Filter Preferences to allow some non-intrusive advertising. The goal is to support websites using non-intrusive ways to advertise and to encourage more websites to do the same.
- 'amavisd-new' is an interface between MTAs and content checkers, including virus scanners, and/or the Mail::SpamAssasin Perl module. It talks to the MTA via (E)SMTP or LMTP, or by using helper programs. No timing gaps exist in the design, which could cause a mail loss. It is normally positioned at or near a central mailer, not necessarily where the user's mailboxes and final delivery takes place.
- arkOS is a lightweight Linux-based operating system, initially targeted to run on a Raspberry Pi, intended to make self-hosting server software as easy as possible. It has different components that interact to achieve these ends, chief among them an integrated application called Genesis which graphically manages the server and its components. With Genesis, users can easily add/remove server software, manage websites, change system settings and more from a reliable visual interface that's easy to use. arkOS puts a focus on user's experience, requiring no command line experience to run well. In the future, users will also be able to host their email accounts, chat accounts, and social networking profiles from an arkOS server just as easily.
- Authforce is an HTTP authentication brute forcer. Using various methods, it attempts brute force username and password pairs for a site. It has the ability to try common usernames and passwords, username derivations, and common username/password pairs. It is used both to test the security of your site and to highlight the insecurity of HTTP authentication due to the fact that users just don't pick good passwords.
- CrococryptQuerl (CQuerl) is a web-based open-source file encryption and file exchange tool. If you trust the application service provider which is running CrococryptQuerl, it can be seen as an "anonymous & encrypted safe deposit box for computer files". The user provides a file and password and receives an ID. No plaintext data is stored in CQuerl including filenames. If the user looses the ID or forgets the password, the encrypted file cannot be recovered - even by the service provider.
- Cjdns implements an encrypted IPv6 network using public key cryptography for address allocation and a distributed hash table for routing. This provides near zero-configuration networking without many of the security and robustness issues that regular IPv4 and IPv6 networks have. Hyperboria is the largest cjdns network, with hundreds of active nodes around the world.
- Clipperz is a web based password manager. Local encryption within the browser guarantees that no one except you can read your data. With Clipperz you can quickly login to websites, as well as organize and store logins and any confidential data.
- Chat with your friends, securely.
Cryptocat is free software with a simple mission: everyone should be able to chat with their friends in privacy.
- Free software. All Cryptocat software is published transparently.
- Encrypted by default. Every message is encrypted, always.
- Forward secure. Chats are safe even if your keys are stolen.
- Multiple devices. Devices receive messages even when offline.
- File sharing. Securely share files with friends.
- DNSleak inspects DNS packets on the local network interface to detect leaks. Unlike web-based solutions, it works at the local computer level. No third party servers are used and DNS leak result is a true/false response.
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