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OSS for Industry

Offline Secure Storage for Professional Services

Consulting, accounting, and advisory firms hold sensitive client data across multiple engagements. Offline Secure Storage (OSS) provides physical disconnection for your most valuable files.

We Think This Is Hard to Ignore

Deloitte, PwC, and KPMG have all disclosed breaches where client engagement data was accessed through always-connected firm infrastructure. At Firevault, client records live on hardware with no network connection, because advisory trust depends on data that attackers cannot reach.

£14M

ICO fine to Capita for failing to secure client data

ICO, October 2025

6M+

People affected by Capita data breach across clients

ICO, October 2025

£300M

Estimated profit loss from M&S ransomware attack

Reuters, 2025

£1.2M

ICO fine to LastPass for credential security failures

ICO, December 2025

Professional Services Reality

Consultancies, accountants and advisory firms hold their clients' most sensitive plans long before they are public. A single compromised laptop or shared cloud folder can expose a strategy deck, audit working paper or transaction model that the client paid to keep private. Firevault gives advisory teams a physically disconnected vault for the engagement files that must never leak, with identity-verified access for partners and the engagement team only.

Industry Risks

Professional services face growing data risk.

Client Confidentiality

Multi-client data creates concentration risk, one breach exposes many clients.

Staff Turnover

High staff mobility increases insider threat and data leakage risk.

Regulatory Compliance

FRC, ICAEW, and professional bodies mandate data protection standards.

The Reality

This is already happening in professional services.

Capita: £14M Fine, Outsourcing Giant's Client Data Exposed

Capita provides outsourced services to hundreds of professional firms. The ICO fined the company £14 million after hackers accessed personal data of over 6 million people across multiple client engagements.

ICO, October 2025

M&S: DragonForce Ransomware via Compromised Third Party

Attackers gained access to Marks and Spencer systems through a compromised third-party provider, demonstrating how professional services supply chains create cascading breach risk.

Reuters, 2025

LastPass: £1.2M Fine for Professional Credential Failures

The ICO fined LastPass £1.2 million after hackers stole encrypted password vaults. Many professional services firms relied on the platform to manage client system credentials.

ICO, December 2025

How Firevault Stops This

Remove client data from every system attackers can reach.

Client engagement files, audit workpapers, and advisory records are taken off firm networks and written to dedicated RAID 1 drives inside a Firevault Bunker. Those drives have no internet connection. No IP address. No API. When authorised professionals need access, a physical connection is created after identity verification. When the session ends, the drives disconnect.

  • Client engagement data removed from firm networks and placed on hardware with no network connection. One breach cannot expose multiple clients
  • Engagement-specific access controls with identity verification. Former staff credentials cannot unlock physically disconnected hardware
  • Full audit trail for GDPR, ICAEW, and FRC compliance. Every file access is logged and attributable
  • Scalable from boutique firms to Big Four operations with centralised offline protection

Take Client Data Off Advisory Networks

Step 1 of 3

Client engagement files, audit workpapers, and advisory records are taken off firm networks and written to physically disconnected RAID 1 drives inside a Firevault Bunker. No cloud. No shared workspace. No attack surface.

“Members must take all reasonable steps to protect confidential information, including the use of secure storage and access controls proportionate to the sensitivity of the information held.”
Source: ICAEW Code of Ethics, Section 114, 2024

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Choose Your Protection

Which OSS Fits?

300GB

Low Use Vault, Deep Cold Storage

From £74.99/mo

inc. VAT · £0 due today

Deep cold storage for archived client engagement files and historical advisory records.

What 300GB holds

~60,000 high-res photos
~150,000 PDF documents
~1,200 hours of voice recordings
~75 hours of HD video

Use Cases for Professional Services

  • Archived client engagement files
  • Historical audit workpapers
  • Legacy advisory records
  • Closed project documentation
  • Former partner correspondence

Specifications

Capacity

300GB

Access

2 windows/week

Authentication

Identity-locked

Commitment

36 months

Security & Compliance

NATO-Approved FacilityDSIT-ReferencedGDPR Art. 32Cyber Essentials Plus

How to Get Started

Step 1

Discovery Call

Understand what you need to protect and how you operate.

Step 2

Vault Configuration

Select your tier, capacity, and access model.

Step 3

Identity Verification

Complete KYC/AML and set up multi-factor authentication.

Step 4

Go Live

Data ingestion, access policy activation, and ongoing support.

OSS Butterfly for Professional Services

One Vault, every partner, every stage of the engagement.

Offline Secure Storage sits at the centre of the firm, owned by the Managing Partner, the Head of Risk and the engagement partner accountable for the file. Client acceptance and scoping feed the live engagement file on one set of wings; sub-advisors, counsel and the live engagements the firm is running in parallel form the other. Nothing is reachable between sessions, and every touch is logged to ICAEW, FRC and ISO standard.

Managing Partner
COO
CFO
Firevault butterfly mark
Head of Risk
Engagement Partner
IT Director
Firevault OSS
disconnect to protect
Upper Left Wing

Client Acceptance and Scoping

  • KYC and conflict checks completed before the engagement opens
  • Engagement letters and scope documents lodged at acceptance
  • Independence and ethical-threat assessments captured at file level
  • Fee estimates, budgets and recoverability lodged for partner sign-off
  • Network-firm and component-auditor approvals stored on the file
  • Client risk rating and EQCR requirement determined at intake
Upper Right Wing

Engagement File

  • Working papers and audit evidence
  • Tax returns and computations
  • Models, forecasts and valuations
  • Reports and signed deliverables
  • Letters of engagement and side letters
  • Client master files and KYC records
  • EQCR and partner review notes
  • Internal consultations and technical memos
Lower Left Wing

Sub-advisors and Counsel

  • Offshore and shared-service teams
  • External counsel and legal advisors
  • Specialist subject-matter experts
  • Translators, interpreters and forensic specialists
  • Independent reviewers and EQCR partners
Lower Right Wing

Live Engagements

  • AuditAUD
  • TaxTAX
  • AdvisoryADV
  • Transaction ServicesTS
  • RestructuringRX
Archived DataClosed engagements, completed audits and long-retention working papers, held offline under the firm's sole control.

Questions

Frequently Asked

Ready to take the next step?

See how Firevault can protect your most sensitive data with physically disconnected storage.

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