Welcome to our curated collection of security resources. This page features selected tools and guides from trusted sources in the security community.
Gibson Research Corporation (GRC)
GRC.COM has been a trusted name in computer security since 1988. Founded by Steve Gibson, the site offers a variety of security tools and services.
Top Security Tools (By Current Popularity)
DNSBench
- Current Rank: #1 (Historical Rank: #1)
- Over 9.5 million total downloads
- Advanced DNS benchmark utility
- Compare DNS server performance and reliability
- Download DNSBench
ValiDrive
- Current Rank: #2 (Historical Rank: #13)
- Over 530,000 total downloads
- Quickly spot-checks USB storage for fraud
- Verifies actual storage capacity of drives
- Download ValiDrive
InControl
- Current Rank: #3 (Historical Rank: #14)
- Over 519,000 total downloads
- Controls Windows updating and upgrading
- Maintains security updates while managing feature updates
- Download InControl
InSpectre
- Current Rank: #4 (Historical Rank: #6)
- Over 3.1 million total downloads
- Checks for Meltdown and Spectre vulnerabilities
- Analyzes system protection status
- Download InSpectre
SecurAble
- Current Rank: #5 (Historical Rank: #3)
- Over 6.4 million total downloads
- Displays processor’s security features
- Tests CPU security capabilities
- Download SecurAble
IsBootSecure
- Current Rank: #6 (Historical Rank: #32)
- Over 34,000 total downloads
- Verifies secure boot configuration
- Checks for compromised boot security keys
- Download IsBootSecure
LeakTest
- Current Rank: #7 (Historical Rank: #2)
- Over 8.2 million total downloads
- Tests personal firewall security
- Detects application masquerading vulnerabilities
- Download LeakTest
BootAble
- Current Rank: #8 (Historical Rank: #33)
- Over 32,000 total downloads
- Verifies PC compatibility with FreeDOS
- Tests boot capabilities and secure boot settings
- Download BootAble
Never10
- Current Rank: #9 (Historical Rank: #5)
- Over 3.2 million total downloads
- Controls Windows 10 upgrading
- Manages Windows update settings
- Download Never10
ID Serve
- Current Rank: #10 (Historical Rank: #12)
- Over 1 million total downloads
- Internet server identification utility
- Assesses web server security
- Download ID Serve
ClicKey
- Current Rank: #11 (Historical Rank: #17)
- Over 388,000 total downloads
- Keyboard sound enhancement utility
- Adds customizable click feedback
- Download ClicKey
InitDisk
- Current Rank: #12 (Historical Rank: #30)
- Over 55,000 total downloads
- USB drive formatting utility
- Recovers and formats storage devices
- Download InitDisk
Wizmo
- Current Rank: #13 (Historical Rank: #10)
- Over 1.3 million total downloads
- Multipurpose Windows utility
- System control and management tool
- Download Wizmo
UnPlug n’ Pray
- Current Rank: #14 (Historical Rank: #4)
- Over 4.4 million total downloads
- Universal Plug & Play management
- Network security enhancement
- Download UnPlug n’ Pray
ReadSpeed
- Current Rank: #15 (Historical Rank: #36)
- Over 25,000 total downloads
- Storage performance benchmark
- Tests drive read speeds
- Download ReadSpeed
DCOMbobulator
- Current Rank: #16 (Historical Rank: #9)
- Over 1.9 million total downloads
- Windows DCOM security utility
- Manages DCOM settings
- Download DCOMbobulator
MouseTrap
- Current Rank: #17 (Historical Rank: #19)
- Over 327,000 total downloads
- Checks for MICE vulnerabilities
- Metafile security testing
- Download MouseTrap
Shoot The Messenger
- Current Rank: #18 (Historical Rank: #8)
- Over 2.4 million total downloads
- Windows Messenger spam protection
- Network security enhancement
- Download Shoot The Messenger
OptOut
- Current Rank: #19 (Historical Rank: #7)
- Over 3 million total downloads
- Original spyware removal tool
- Historical security utility
- Learn About OptOut
LetShare
- Current Rank: #20 (Historical Rank: #26)
- Over 147,000 total downloads
- NetBIOS enabler utility
- Network sharing management
- Download LetShare
MouseTrapCmd
- Current Rank: #21 (Historical Rank: #31)
- Over 55,000 total downloads
- Command-line MICE vulnerability checker
- Automation-friendly security testing
- Download MouseTrapCmd
NoShare
- Current Rank: #22 (Historical Rank: #23)
- Over 210,000 total downloads
- NetBIOS disabler utility
- Network security tool
- Download NoShare
SQRL
- Current Rank: #23 (Historical Rank: #35)
- Over 28,000 total downloads
- Secure Quick Reliable Login
- Password-less authentication system
- Download SQRL
SpinRite Manual
- Current Rank: #24 (Historical Rank: #16)
- Over 444,000 total downloads
- Data recovery tool documentation
- Complete operation guide
- Download Manual
XPdite
- Current Rank: #25 (Historical Rank: #11)
- Over 1.1 million total downloads
- Windows XP vulnerability fixer
- Legacy security tool
- Download XPdite
For a complete list of GRC’s free security tools and their current popularity rankings, visit the GRC Free Popular Software Page .
Router Security
RouterSecurity.org is dedicated to helping users secure their routers, which are often the first line of defense in home and small business networks. Created by security expert Michael Horowitz, this comprehensive resource emphasizes the importance of router security in today’s connected world.
Why Router Security Matters
Most people buy a router, set it up, and ignore it for years. However, this approach can be dangerous because:
- If a router gets infected with malware or is maliciously reconfigured, most users would never know
- There is no anti-virus software for routers
- Router software/firmware often has significant security flaws affecting millions of devices
- Compromised routers can lead to serious security breaches
Essential Router Security Checklist
RouterSecurity.org provides a comprehensive security checklist. Here are the most critical steps:
Password Security
- Change the default administrative password
- Use strong Wi-Fi passwords (minimum 16 characters)
- Change default network names (SSIDs)
Network Protection
- Enable WPA2 (with AES) or WPA3 encryption
- Disable WPS (Wi-Fi Protected Setup)
- Turn off UPnP (Universal Plug and Play)
- Use password-protected Guest Networks for IoT devices
Administrative Security
- Disable Remote Administration
- Verify no unwanted port forwarding exists
- Consider disabling IPv6 if not needed
Maintenance Best Practices
- Regularly check for and install firmware updates
- Replace routers that no longer receive updates
- Back up router configurations after changes
Additional Security Measures
The site also provides advanced guidance on:
Network Segmentation
- Creating separate networks for different purposes
- Isolating IoT devices from main network
- Setting up secure guest access
Monitoring & Maintenance
- Regular router reboots for security
- Checking attached devices list
- Monitoring DNS settings
- Reviewing router logs
Router Selection
- Evaluating router security features
- Choosing devices with good update histories
- Understanding the importance of business-class routers
For comprehensive router security documentation, tools, and the latest updates, visit RouterSecurity.org . The site is regularly updated with new security information and maintains a “Routers in the News” section for current security issues.