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.

  • Client file exfiltration
  • Ransomware of matter data
  • Insider leak of engagements
  • Regulator notification risk
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#OSS at a glance
Professional services client files protected by Offline Secure Storage

Offline Secure Storage® keeps a clean copy on hardware that is physically disconnected.

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.

The evidence
01
ICO fine to Capita for failing to secure client data
£14MICO fine to Capita for failing to secure client dataICO, October 2025
02
People affected by Capita data breach across clients
6M+People affected by Capita data breach across clientsICO, October 2025
03
Firms disrupted by the CTS managed service provider attack
200Firms disrupted by the CTS managed service provider attackLaw Society Gazette, November 2024
04
ICO fine to LastPass for credential security failures
£1.2MICO fine to LastPass for credential security failuresICO, December 2025
Industry Risks

Professional services face growing data risk.

01

Client Confidentiality

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

02

Staff Turnover

High staff mobility increases insider threat and data leakage risk.

03

Regulatory Compliance

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

The reality

This is already happening in professional services.

Every incident below is a matter of public record. Each one involved data that was reachable from a live network at the moment of compromise.

01

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

02

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

03

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

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.
How OSS Helps

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.

What the regulator says

ICAEW Code of Ethics, Section 114, 2024
“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.”

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Choose your protection

Which Offline Secure Storage® fits professional services?

Every tier is the same physical principle at a different scale. Pick the access pattern that matches how your team works, then see the capacity, price and use cases for it.

300GB

Low Use Vault, Deep Cold Storage

£74.99/mo

inc. VAT · £0 due today

Deep cold storage for archived client engagement files and historical advisory records. One nominated access day each week within a 12-hour window.

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

1 day/week, 12-hour window

Authentication

Identity-locked

Commitment

36 months

Security & Compliance

Carefully Selected BunkersDSIT-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.

Questions

Frequently Asked

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