Cybersecurity and hardware roots of trust
All AmbiSecure engineering content tagged Cybersecurity, newest first. Newer entries reflect current thinking; earlier entries come from the engineering archive.
Cybersecurity, for a hardware-identity vendor, is less about perimeter defence and more about making credentials unclonable and authentication phishing-resistant. The strongest control you can give an organisation is a secret that cannot be extracted, phished, or replayed — which is exactly what a key bound to a secure element provides.
This category collects broader security engineering writing: authentication architecture, why software-only device trust fails, and how hardware roots of trust change the economics for attackers. The recurring argument is that moving the authentication secret into tamper-resistant hardware removes whole categories of attack rather than merely detecting them.
Frequently asked questions
What is a hardware root of trust?
A hardware root of trust is a tamper-resistant component (a secure element) that stores keys and performs cryptographic operations without exposing secrets to software, providing an anchor for boot integrity, attestation, and authentication.
Why does software-only device trust fail?
Keys held in software can be read by malware, copied between devices, and are hard to attest reliably. Without hardware isolation there is no strong binding between a credential and a specific physical device.
Is multi-factor authentication still worthwhile?
Yes — but the factors matter. Phishing-resistant hardware factors (FIDO2 security keys, smart cards) deliver far more protection than SMS or app OTPs, which remain phishable.
What does defence in depth mean in practice?
Layering controls so no single failure is decisive. In hardware-rooted systems that means a tamper-resistant key store beneath signed firmware beneath authenticated communication, each assuming the layer above may fail.
Where should an organisation start if it is early in this work?
With the credential. Most incidents in this category begin with a stolen or replayable secret, so replacing shared secrets with hardware-bound credentials closes the widest gap for the least architectural change.