Zero-Day Challenge

Put Comodo Cybersecurity to the test
Submit a sample of your chosen malware to the Valkyrie Verdict engine.

If you can show that Comodo fails to detect actual malware, we'll publicize your submission - you'll be famous! And we'll add your submission to our verdicting blacklist. If we correctly identify your submission as malware, we still publicize your submission, along with your name and photo, as proof of our technology.

We also dare other AV vendors to accept the same challenge, to serve the AV user community through transparency and to help everyone be more secure and virus-free.

Comodo Cybertechnology. We don't hide behind terms of service. We proudly stand in front of our malware prevention.

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Zero-day Challenge