Confidential Computing

The execution environment must be trusted independently of its host.

Cryptellum is CENSUS's confidential execution platform — protecting AI workloads even from the infrastructure that runs them.

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The Runtime Gap

Your data is protected everywhere except the one place it's actually used.

Encryption covers data at rest and in transit.

Runtime, where models, data and prompts exist in plaintext to be processed, is the least protected, most exposed phase of the AI pipeline. Compromised system management services, privileged insiders, firmware exploits and memory-scraping attacks all target exactly that gap.

What's actually at risk

  • 01

    Compromised management services

    System-level tooling with privileged access becomes a route into the workload.

  • 02

    Privileged insiders

    Admins and infrastructure operators can see plaintext data and models by default.

  • 03

    Firmware & boot-level exploits

    Compromise below the OS undermines every guarantee built on top of it.

  • 04

    Memory-scraping & side-channel attacks

    Advanced attacks read secrets directly out of live memory during computation.

Hardware-Backed, Not Policy-Based

Isolation you can verify, not isolation you have to take on trust.

Cryptellum seals your workload inside a Trusted Execution Environment. Every layer of that boundary can be independently verified through cryptographic attestation, not taken on trust.

Hardware-backed confidentiality

Plaintext only ever exists inside a TEE — infrastructure operators and cloud providers never see it.

Assess. Design. Build.

Confidentiality engineered in, not bolted on after.

Assess your workload's real trust boundary, where data and models are actually exposed.

Design the attestation chain that proves runtime integrity end to end. Build on hardware-backed TEEs, from CPU to GPU, with an SDK your application layer can call directly.

Five guarantees. Each one independently verifiable.

No spam. Just the paper.

  • Hacking Acumen
  • Cybersecurity Engineering
  • Scientific Superiority
  • Ethos & Professionalism

Global team

Athens, GR

London, UK

Abu Dhabi, UAE

Dubai, UAE

Vilnius, LTU

Engineering, Not Advisory

The engineers who break systems for a living built the one that can't be broken from outside.

CENSUS audits security-critical devices and software used by Fortune 500 companies, with findings that have shaped public advisories for the Linux kernel, Android multimedia framework, Microsoft Windows networking stack, WhatsApp Messenger and Oracle WebCenter. Cryptellum is that same hacking acumen, engineered into a platform.

5+
Years in operations
130+
Security engineers
4
Global offices
ISO 27001
Certified
CREST
Accredited

Presented at

  • Black Hat
  • DEF CON
  • INFILTRATE
  • OffensiveCon
  • TROOPERS

The technical architecture.

The architecture, the hardware, and where legacy isolation stops.

Cryptellum Technical Overview covers the full architecture, the hardware stack, and where legacy approaches fall short.

No spam. Just the paper.

  1. 01

    All five security requirements, explained

  2. 02

    The hardware stack: Intel TDX, AMD SEV-SNP, Arm CCA, NVIDIA H100

  3. 03

    Where software-based isolation and policy-based execution fall short