Harden your system. Hunt down malware. Stay protected.
Kudu's Security Hardening audits 35+ privacy and security settings and enforces them with one click. The built-in malware scanner uses 70+ signature patterns across multiple detection engines to keep your system clean.

Privacy Shield + Malware Scanner, working together.
Harden your OS settings to reduce your attack surface, then scan for threats that might already be on your system. Defense in depth, built into one free tool.
Audit and harden 35+ settings
Firewall status, disk encryption, telemetry settings, remote desktop, auto-login, screen lock timeout, and dozens more. Kudu checks each one, tells you what's weak, and lets you fix it with a single click.

Multi-engine malware scanning
70+ signature patterns detect PUPs, adware, spyware, trojans, and ransomware indicators. Kudu scans running processes, startup items, browser extensions, and scheduled tasks — not just files on disk.

Security and privacy, fully audited.
Firewall & Encryption
Verify firewall is active, disk encryption is enabled, and secure boot is configured correctly.
Malware Detection
70+ signature patterns across multiple engines. Scans processes, startup items, extensions, and scheduled tasks.
Privacy Telemetry
Audit and disable OS telemetry, advertising IDs, location tracking, and diagnostic data collection.
One-Click Hardening
Apply recommended security settings across all categories with a single action. Undo any change instantly.
Browser Extension Audit
Scan installed browser extensions for known malicious or suspicious add-ons across all major browsers.
Startup Item Scanning
Check every auto-start entry for suspicious executables, unsigned binaries, and known threats.
Security Score
Get a 0–100 security score based on your current settings. Track improvement over time.
Quarantine & Restore
Detected threats are quarantined safely. Restore false positives with one click.
CLI & Scripting
Run security audits and malware scans from the command line. Automate with cron or Task Scheduler.
Your system's security, quantified.
Most systems ship with dozens of insecure default settings. Kudu finds them all and gives you the tools to fix them.
Privacy and security settings audited and enforceable.
Malware signature patterns across multiple detection engines.
Security score so you always know where you stand.
Lock down your system in minutes.
Download Kudu for free and harden your privacy settings, scan for malware, and take control of your system's security.