Category/Security
- ACE UC Sniffer
- A simple VoIP corporate directory enumeration tool
- AE-DIR
- Authorized Entities Directory -- The agile IAM for DevOps
- AGT
- Frontend for iptables
- AIM Sniff
- A network sniffer for AIM and MSN messages.
- AMaViS-ng
- Searches attachments and archives for malicious code
- APSR
- TCP/IP packet sender to test firewalls and other network applications
- Acccheck
- Password dictionary attack tool for SMB
- Achoz
- organize all of your own world data
- Adblock Plus
- Ad blocker
- Aenig4
- Enigma M4 Cipher Machine Emulator
- Afick
- File integrity checker
- Aiodns
- Asynchronous DNS resolutions
- Alfandega Firewall
- Implements iptables-based firewalls
- Amavisd-new
- Interface between MTAs and content checkers
- Anastasis ,
- Key backup and recovery
- And-httpd
- And-httpd is an HTTP server that maps URLs to files. It currently has a $2000 "security guarantee" against remote attacks.
- Anontwi
- Tool to have more privacy on social networking sites
- AnonymousMessenger
- a peer to peer private anonymous and secure messenger that works over tor.
- AntiExploit
- Scans for well known exploit files
- Apf
- Port forwarder that uses SSL for secure packet tunneling
- App Manager
- A full-featured package manager and viewer for Android
- ArgusEye
- A GUI for the Argus network auditing suite.
- ArkOS
- Self-hosted server operating system
- Arpalert
- Uses ARP address monitoring to help prevent unauthorized connections
- AuthPass
- Cross platform, Keepass compatible password manager
- Authforce
- An HTTP Authentication brute forcer.
- AuthzForce
- Attribute-Based Access Control (ABAC) framework compliant with OASIS XACML 3.0
- AutoFW
- a firewall script for broadband and dial-up users.
- Bas55
- ECMA-55 Minimal BASIC Interpreter
- BeeCrypt
- Cryptography library
- Bitwarden
- Open source password management solutions for individuals, teams, and business organizations.
- Bitwarden-ruby
- Server-side credential storage compatible with Bitwarden clients
- Black-widow
- Offensive penetration testing tool
- Bleachbit
- delete unnecessary files from the system
- BlockIt
- Monitors the Snort alert file
- BlueProximity
- automatically locks and unlocks the screen when you and your bluetooth enabled device leave/enter the desk area.
- Botan
- Library of cryptographic algorithms
- Briar
- Secure messaging, anywhere
- Broadband-usage
- Home broadband usage meter for SNMP-enabled modem/routers
- Bugs
- Dynamic private key encryption algorithm and applications
- Bulldog Firewall
- Powerful but lightweight firewall for heavy use systems
- Bunny the Fuzzer
- closed loop, high-performance, general purpose protocol-blind fuzzer
- Bup
- Sends keystrokes for collection by a sniffer or a syslogd server
- CQuerl
- Secure File Exchange
- CacoCloud
- A SIMPLE, FAST AND SECURE SELF HOSTED FEED AND MAIL READER, PASSWORD AND BOOKMARK MANAGER.
- Cage
- Replacement for 'chroot'
- Calendar Lock PEA
- Privacy-focussed calendar application.
- Canoeboot
- Free boot firmware for x86/ARM mainboards
- Castopod
- Podcast hosting software
- Ccrypt
- Encryption utility
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