# QCT Studio: Secure what has to last. Post-quantum security, cybersecurity and technology for banks, governments and regulated enterprises, from post-quantum migration to AI agents in production. Senior people, named leads, evidence you can take to the board. ## The problem Encrypted data stolen today can be decrypted later. Harvest now, decrypt later: traffic and archives captured today can be broken once quantum computers mature. The question is whether your migration finishes first. - **X, Shelf life:** How long the data must stay confidential - **Y, Migration time:** How long moving to post-quantum takes - **Z, Threat horizon:** Years until a relevant quantum computer If X + Y is greater than Z, that data is already exposed. ## Engagements - **Quantum-readiness and crypto-agility assessment** (6–10 weeks, fixed scope). Where quantum-vulnerable cryptography lives across your estate, which data outlives it, and the order in which to move it, with a plan your board and regulator will accept. For banks, insurers, payments, government and critical infrastructure. - **Post-quantum migration roadmap** (Scoped in proposal). Turn exposure into a phased programme: which systems move first and which wait on a dependency, where hybrid operation keeps trust unbroken, who decides, funds and accepts residual risk, and the measures that show it is moving rather than merely planned. For security, technology and transformation leaders with a post-quantum mandate. - **Crypto-agility strategy** (Scoped in proposal). Post-quantum will not be the last cryptographic change. We find where algorithms, certificates and trust anchors are hard-coded, then design the architecture, governance and operating model that let you swap them without rebuilding the estate. For security architecture and platform teams. - **Secure AI and agent deployment pilot** (10–16 weeks). Put an agent into production with identity, least-privilege tools, data controls and red-teaming designed in from the first sprint, on a weekly delivery cadence. For regulated enterprises and their ai teams. - **AI and cybersecurity technical diligence** (Scoped in proposal). An operator's read on the security, cryptography and AI claims behind a transaction, a vendor selection or a partnership, before you commit. For investors, family offices and corporates. - **Security architecture and resilience advisory** (Monthly retainer). Senior judgement on security architecture, resilience and incident readiness, on a monthly retainer, for teams that need it more often than they can hire it. For security and risk leaders in finance, infrastructure and the public sector. - **Talent network and placement** (Scoped in proposal). Senior security, cryptography and AI hires for your team, from people who have shipped in regulated environments. For banks, ai startups and security vendors. - **Venture build and research** (Cash plus negotiated equity). Turn a validated deep-tech problem into a company, with clean IP ownership and a paying design partner from the start. For corporate sponsors, founders or a validated concept. ## Practices ### Post-quantum Move to post-quantum before it is urgent. PQC migration, crypto-agility, key management and quantum-safe networks: find every algorithm, key and certificate, decide what moves first, and migrate to hybrid ML-KEM and ML-DSA designs without breaking production. Scope: PQC migration, Crypto-agility, Key management, Quantum-safe networks. ### AI & privacy Use AI without giving your data away. Model protection, confidential computing and data governance, so sensitive data stays governed when it meets a model, and you can prove it to a regulator. Scope: Data governance, Model protection, Confidential computing, Privacy engineering. ### AI agent security Agents in production, on your terms. Agent identity, least-privilege tool access, prompt-injection defence and red-teaming, designed into the pilot from the first sprint rather than bolted on after it. Scope: Agent identity, Least-privilege tools, Prompt-injection defence, Red-teaming. ### Cybersecurity Defence that holds when it matters. Security architecture, resilience and incident readiness for finance and critical systems, from senior people on call. Scope: Security architecture, Resilience, Incident readiness, Detection & response. ### Technology Deep tech, made dependable. Diligence, architecture and venture builds for deep tech: quantum, advanced cryptography, confidential computing and AI infrastructure, judged by people who have shipped it. Scope: Deep-tech diligence, Quantum & cryptography, AI infrastructure, Venture build. ## Method 1. **Assess.** Know your exposure, by data class. 2. **Discover.** Find every algorithm, key and certificate. 3. **Migrate.** Move to hybrid post-quantum designs, safely. 4. **Assure.** Prove it, continuously, to boards and regulators. ## Who we work with - **Banks & financial institutions.** Long-lived data, strict regulators and production systems that cannot go down. Start with your quantum exposure, by data class, and a plan supervisors will accept. - **Governments.** Agencies and public bodies working to post-quantum deadlines, with citizen and sovereign data that must stay secret for decades. Inventory, prioritise and migrate on a timeline you can defend. - **Family offices.** Inside your family office, protecting its own data, people and payments, and across your portfolio companies, with an operator's read on the security and AI behind each one. - **Security for AI startups.** Agent identity, model and data protection, and red-teaming, so your product passes the enterprise security review that stands between you and the contract. ## Why QCT Studio - **Senior pods, named leads.** The people who scope the work deliver it. No pyramid of juniors behind a partner. - **Evidence over opinion.** Every finding is tied to a named primitive, system and data class, so it survives audit. - **Conflicts in writing.** Where a recommendation touches a party we have a relationship with, we disclose it in writing before you decide. - 20+: Years in cyber leadership and applied cryptography - 23: Approved patents across cryptography, security and ML - Exit: Co-founded SC Square, acquired by Broadcom Credentials of Dr. Jacob Mendel, Co-founder and CTO. ## Our commitment The people who scope your work deliver it, and every finding is tied to evidence that survives audit. ## Start with two weeks. A fixed-fee readiness sprint: an exposure heatmap, a Mosca analysis and your top ten priorities. Start at https://qctcapital.com/studio/readiness-sprint. --- Canonical page: https://qctcapital.com/studio Contact: contact@qctcapital.com Site summary for agents: https://qctcapital.com/llms.txt