Unisys Stealth Capture the Flag Challenge
Hack it We Dare You

Get notified when a Capture the Flag challenge is available!

Do You Think

You Can Hack It?

The Unisys Stealth® Capture the Flag Challenge is looking for cybersecurity developers, pen testers, and hackers to break into the Unisys Stealth® environment. Can you hack it? We are so confident in the Stealth™ solution capabilities that we’re willing to pay a bounty if you are able to “capture the flag.”

What is Unisys Stealth®?


Stealth is a software suite trusted by government and commercial organizations to protect sensitive systems from cyber threats with identity-driven, software-defined micro-segmentation. Stealth creates communities of interest (COI) that establish exclusive communication channels between members based on trusted identities. Community members cannot initiate or accept communication from non-members and cryptography restricts non-members from intercepting intra-community communications

Learn more about

Unisys Stealth® Solutions

Highlights of past CTFs

The Unisys CTF Challenge was held at RSA in February 26th, 2020.

The one day event allowed the participants to try to hack into Unisys Stealth® environment. The goal of this challenge was to highlight Unisys Stealth® environment and how secure it truly is. If anyone was to succeed, they would win $10,000.

A total of 21 people participated, and no one was able to compromise the Stealth™ environment. However, $10,000 was donated to WiCyS in support of their Veterans Assistance Program!

Follow us onUnisys Security Twitter#StealthCTF

Here is what we heard:

The event was incredibly well put together, however Stealth is very frustrating! I have been doing CTF events
for 12 years and this is one CTF that has stumped me from the very beginning
Nicholas Frangia

Before coming here, I thought it wasn’t going to be hard. Now, it feels very well implemented
and I need to rethink my strategy
Priyal Shah

Holy cow, this is hard!
Wally Ly