ThreeShield provides on-site IT support, cybersecurity assessments, and managed security for accounting firms and CPA practices in Calgary and Vancouver. We reduce your cyber insurance premiums through documented security controls, satisfy CPA Canada framework requirements, and manage IT around your tax season deadlines — not ours. Our founder is a former Auditor General auditor who presents annually at the CPA Banff Small Practitioner's Forum.
"ThreeShield provides wonderful IT support for our Calgary-based accounting firm. They are hands on and proactive. Cyber security insurance providers have confirmed they have protected our business well. It's nice being able to sleep well at night that the IT side is taken care of."
A breach at one accounting firm can expose the financial records, tax returns, and business strategies of dozens or hundreds of client organizations - making you a multiplier target for sophisticated threat actors.
Attackers increasingly target professional services firms as an entry point into their client organizations. Your access to client systems for bookkeeping, payroll, or filing makes your security the client's problem too.
A data breach at your firm doesn't just create legal liability - it threatens your reputation and the trust relationships that took decades to build. Your E&O insurer wants to see documented security controls.
CPA Canada's Cybersecurity Framework, PIPEDA/Bill C-27, and provincial privacy laws all create obligations that generic MSPs don't understand. Non-compliance creates exposure most firms haven't quantified.
ThreeShield provides on-site IT support and cybersecurity for CPA firms and accounting practices in both Calgary and Vancouver — two cities where we have staff and phone numbers, not remote-only contractors.
ThreeShield has served Calgary-area accounting firms, bookkeepers, and financial advisors for over a decade. We understand the Alberta regulatory environment, the CPA Alberta requirements, and the tools Calgary practitioners use — Caseware, TaxCycle, ProFile, QuickBooks, Dext, and others. Our founder presents at the CPA Banff Small Practitioner's Forum. Call 403-538-5053 for Calgary service.
ThreeShield's BC team provides on-site and remote IT support and cybersecurity for Vancouver-area accounting firms and CPA practices. We understand BC PIPA obligations, the specific compliance requirements for BC-registered firms, and the tools Vancouver practitioners rely on. On-site support is available throughout Metro Vancouver. Call 778-731-1339 for Vancouver service.
Unlike remote-only MSPs, ThreeShield provides on-site IT support for accounting firms in Calgary and Vancouver. Physical office visits for hardware issues, network configuration, workstation setup, and compliance walkthroughs. When something needs hands-on attention — and in accounting offices, it often does — we come to you.
Accounting firms consistently pay higher cyber insurance premiums than their actual security posture requires, because their IT provider can't document the controls insurers want to see. ThreeShield implements and documents CIS Controls, MFA enforcement, patch compliance, backup testing, and security awareness training — the specific controls that drive premium reductions with major Canadian cyber insurers. Our managed clients have had insurers confirm their protection is in place, as Juliane's testimonial above shows.
ThreeShield freezes non-critical IT changes during tax season, month-end, and year-end. No surprise updates, no reboot-required patches, no network changes during March and April unless they're essential for security. We plan around your calendar — and we know what that calendar looks like, because we work with accounting firms every year.
Larger clients and financial institutions increasingly require their accounting firm vendors to complete security questionnaires before engaging. ThreeShield handles these for managed clients — accurately documenting your controls in the format the requesting organization expects. You close the engagement, not your IT person figuring out what "SOC 2 Type II" means.
The CPA Canada Cybersecurity Framework defines governance, risk management, protection, detection, and response obligations for accounting professionals. Lavawall® GRC maps your controls to the framework continuously - not once a year.
Strict access controls, data segmentation, and monitoring ensure that staff access only the client data they need. Lavawall® detects unusual access patterns before they become reportable incidents.
Most accounting firms use M365. Lavawall® monitors your M365 and Entra ID environment for configuration drift, MFA gaps, sharing policy violations, and suspected account compromises in real time.
Annual questionnaires from cyber insurers ask about MFA, patching, backups, and incident response plans. Lavawall® generates the documentation you need. We've helped clients reduce premiums by 10-20%.
An independent cybersecurity audit of your firm demonstrates due diligence to clients, insurers, and regulators. ThreeShield's CISSP/CISA team delivers real findings - not a cursory checkbox review.
A documented, tested incident response plan is now required by most cyber insurers and expected by your largest clients. We develop the plan, test it, and provide CISSP-backed response when incidents occur.
Hybrid work is now permanent. Cloudflare Zero Trust, Entra ID Conditional Access, and Lavawall® endpoint monitoring ensure that staff working from home have the same security posture as the office.
Phishing remains the #1 entry point. We provide security awareness training tailored to accounting firm threats - wire fraud, impersonation, document theft, and the specific social engineering targeting your profession.
ThreeShield has worked with accounting organizations across the size spectrum - and our team has Big-4 audit experience from the inside.
5-30 staff firms that need enterprise-grade security without an enterprise budget. Lavawall® provides the monitoring; ThreeShield provides the expertise - at a price point that makes sense for your size.
Multi-partner firms with 30-200 staff, multiple service lines, and complex access control requirements. We handle the security program so your partners can focus on client work.
In-house IT teams at larger firms who need Tier 3 security expertise and a platform. We augment your team with CISSP/CISA oversight and Lavawall® tooling rather than replacing your people.
Firms building software for the accounting industry often need SOC 2 certification to sell into enterprise accounting clients. ThreeShield delivers SOC 2 readiness with Lavawall® evidence collection.
Most local IT companies handle helpdesk and basic maintenance well. Where they fall short is security-specific expertise: CISSP/CISA credentials, compliance framework knowledge, breach detection, and audit documentation. ThreeShield can co-exist with your current IT provider as the security and compliance layer, or serve as your complete IT and security partner. Many accounting firms keep their existing IT support relationships and add ThreeShield for the security piece specifically.
We operate under strict confidentiality agreements and our staff hold professional certifications requiring adherence to ethics codes. We never have access to client financial data unless explicitly required for a specific engagement - our monitoring is at the infrastructure and access control layer, not the data layer. We can provide our data handling procedures and sign firm-specific confidentiality agreements.
Yes - this is one of the most common engagements we handle. Lavawall® deploys in days and immediately generates the MFA status, patch compliance, and backup documentation insurers ask for. We've helped firms get their policies renewed and premiums reduced within 30-60 days of engagement. If you have a renewal coming up, reach out immediately and we'll prioritize the controls your insurer specifically requires.
A single breach can end a firm's reputation. Book a confidential security assessment to understand your current exposure and what it would take to address it.
Book Confidential AssessmentCalgary-based · CISSP/CISA certified · (403) 538-5053