Device Trust vs User Trust Explained
By CtrlOne Team ·
A recurring source of confusion in Zero Trust is conflating the user with the device. They are separate questions - is this person who they claim to be, and is this machine in a safe state - and a strong program answers both. This article explains device trust versus user trust and is precise about which one CtrlOne addresses.
Two different questions
User trust asks whether the person is who they say they are - the domain of authentication, multi-factor, and identity providers. Device trust asks whether the machine itself is healthy and compliant - correctly configured, hardened, and not tampered with. A verified user on a compromised or misconfigured device is still a risk, which is why both questions matter.
Why you need both
Answering only one leaves a gap. Strong identity on an unmanaged, wide-open device gives an attacker a foothold once they have credentials. A locked-down device with no identity control lets the wrong person operate it. Zero Trust deliberately verifies user and device together so access reflects both who is asking and what they are asking from.
What CtrlOne addresses
CtrlOne is squarely on the device side. It keeps a Windows endpoint in a known-good, hardened configuration, enforces restrictions tamper-resistant, and surfaces posture signals about the machine's state. It contributes to device trust - the question of whether the endpoint is safe to operate from.
What CtrlOne does not do
CtrlOne does not handle user trust. It is not an identity provider, does not authenticate users, and does not do multi-factor or single sign-on. For user trust you use an identity platform; CtrlOne runs alongside it, answering the device half of the question so the two together give you real Zero Trust coverage.
Frequently asked questions
What is the difference between device trust and user trust?
User trust verifies the person's identity through authentication and MFA. Device trust verifies the machine is healthy, compliant, and untampered. A strong Zero Trust program checks both.
Which one does CtrlOne provide?
Device trust. CtrlOne keeps a Windows endpoint in a hardened, known-good configuration and surfaces posture signals about its state. It does not authenticate users.
Do I still need an identity provider with CtrlOne?
Yes. CtrlOne addresses device trust only; user trust comes from an identity platform with authentication and MFA. The two run alongside each other for full coverage.
Cover the device half of Zero Trust
See how CtrlOne establishes device trust while your identity platform handles the user.