Sentry 7 PLC (VULT), previously named Vault Ventures PLC, has announced that its engineering partner Whitespace has entered into a teaming agreement with PA Consulting to deliver a joint co-design and proof of value (PoV) programme. The programme centres on Sentry 7's secure messaging platform, designed specifically for regulated financial institutions facing quantum computing threats and tightening communications compliance requirements. The agreement marks a significant step in the company's efforts to commercialise post-quantum cryptographic technology, though the company has cautioned that success cannot be guaranteed.

Key Points

  • Sentry 7 PLC (VULT), previously named Vault Ventures PLC, listed on AQSE
  • Whitespace has entered a teaming agreement with PA Consulting to deliver a co-design and proof of value programme for Sentry 7's secure messaging platform
  • The PoV programme will proceed across four stages: discovery, design sprint, funded PoV build, and a pilot with a regulator walkthrough
  • Investors should watch for updates on co-design partner confirmation, PoV progress, and any commercial terms that may follow a successful pilot

Whitespace and PA Consulting Join Forces on Post-Quantum Messaging PoV for Regulated Banks

Under the teaming agreement, Whitespace will supply its post-quantum cryptographic technology and lead the construction of the PoV, which is funded by Sentry 7. PA Consulting will take responsibility for stakeholder engagement, compliance mapping, and programme delivery. Regulated financial institutions are expected to participate as co-design partners, contributing use cases, operational constraints, a test environment, and acceptance criteria. The announcement states that the company will provide further information on programme progress in due course, leaving the timeline for co-design partner confirmation open.

Four-Stage PoV Structure Targets Independent Cryptographic Validation and Regulator Walkthrough

The programme is structured across four sequential stages: a discovery phase, a design sprint with co-design partners, a funded PoV build, and a pilot that includes a regulator walkthrough. Success will be measured against independent post-quantum cryptographic validation, penetration testing outcomes, regulatory feedback on the platform's selective disclosure capability, and the results of the bank pilot — including the path to production and any resulting commercial terms. The announcement does not disclose a timeline or cost for the programme beyond confirming it is company-funded.

Platform Addresses "Harvest Now, Decrypt Later" Threats and Regulatory Audit Requirements

Sentry 7's platform is designed to tackle two distinct challenges confronting financial institutions: vulnerability to future quantum computing attacks on existing messaging systems, and the difficulty of meeting regulatory requirements for auditable communications. The platform's intended features include post-quantum cryptographic protection against "harvest now, decrypt later" attacks, selective disclosure for sharing specific auditable data with regulators, on-device artificial intelligence for message summarisation, and secure document sharing with integrity and authenticity controls — all aimed at keeping sensitive data contained within regulated environments.

Sentry 7 Flags Commercialisation Uncertainty as Programme Moves to Proof of Value Stage

The company has explicitly cautioned investors that there can be no certainty the PoV will achieve its objectives, that a co-design partner will be secured, or that the platform will ultimately be commercialised. Any commercial terms remain subject to separate agreement. Proposed CEO and Executive Director Mark Evans-Smith commented that PA Consulting's experience in stakeholder engagement and compliance mapping would help translate the post-quantum technology into a platform built around real operational needs, according to the announcement.