Mike Pearlstein, CISSP — Founder and CEO, Fusion Computing

Founder and CEO of Fusion Computing Limited. CISSP-certified cybersecurity professional with a Master of Science in Computer Science from the University of Guelph. Provides managed IT, cybersecurity, vCIO, and AI consulting leadership to Canadian SMBs since 2012.

Author of the technical writing across fusioncomputing.ca on regulator-anchored IT for Canadian law firms, accounting firms, wealth managers, manufacturers, municipalities, and non-profits. Named in Canada’s 50 Best Managed IT Companies two years running (2024 and 2025).

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About Mike Pearlstein

Mike Pearlstein founded Fusion Computing Limited in 2012. The firm operates a managed IT, cybersecurity, and AI consulting practice for Canadian small and medium businesses, with offices in Toronto, Hamilton, and Metro Vancouver. Mike serves as both Chief Executive Officer and Chief Information Security Officer, holding the (ISC)² CISSP certification, the foundational professional credential for senior information-security practitioners.

Before founding Fusion, Mike completed a Master of Science in Computer Science at the University of Guelph in 2011, where his graduate research focused on artificial intelligence. That academic grounding shapes how Fusion approaches the current generation of AI deployment for clients: tenant-scoped Microsoft 365 Copilot, sensitivity-label-aware retrieval, and the supervision documentation Canadian regulators (the Law Society of Ontario, CIRO, the OSC, CPA Canada) are now asking firms to produce.

Fusion Computing has been an ASCII Group member since 2012, providing access to the peer-network operating discipline and vendor agreements that allow a Canadian SMB-focused MSP to deliver enterprise-grade tooling at SMB pricing. The firm was recognized in Channel Daily News’ Canada’s 50 Best Managed IT Companies list in both 2024 and 2025.

Credentials and recognition

CISSP — (ISC)²Certified Information Systems Security Professional. The recognized senior credential for information-security leadership; required to attest to a firm’s security posture in malpractice-insurer and regulator reviews.
MSc Computer Science (2011)University of Guelph. Graduate research in artificial intelligence. Provides the technical grounding for Fusion’s Microsoft Copilot governance and AI-supervision deliverables.
Canada’s 50 Best Managed IT Companies (2024, 2025)Recognized two years running in Channel Daily News’ annual ranking of Canadian managed IT providers.
ASCII Group member since 2012Membership in North America’s largest IT-services peer network. Provides Fusion’s clients with access to vendor terms and operating discipline that pure-SMB providers cannot match.

Areas of practice

Mike’s direct technical practice covers managed IT operations, cybersecurity architecture, virtual CISO and virtual CIO services, and the AI-deployment governance that Canadian regulators now require of regulated-vertical firms. His writing on fusioncomputing.ca focuses on the practical operating layer: what controls a regulator actually asks to see, what evidence a malpractice insurer or compliance examiner accepts, and what the cost looks like in CAD per advisor, per lawyer, or per workstation.

Regulator-anchored IT deliveryLaw Society of Ontario Technology Practice Management Guideline, FLSC Model Code rule 3.1-2 [4A] and [4B], CIRO Annual Compliance Report, OSFI Guideline B-13, CPA Canada cybersecurity guidance, FIPPA and MFIPPA for Ontario municipalities, PIPEDA across all Canadian SMB sectors.
Microsoft 365 Copilot governanceTenant-scoped Copilot deployment with sensitivity-label-aware retrieval, prompt-leak controls, and the audit-log discipline Canadian regulators are inquiring about during compliance examinations.
Microsoft Purview and eDiscoverySensitivity-label deployment, litigation hold and matter-close runbooks, and eDiscovery export workflows for Canadian law firms.
Cybersecurity baseline architectureCIS Controls v8.1 mapping, MFA and conditional access enforcement, EDR rollout, backup with tested restore, and the incident-response runbook documentation insurers and examiners accept.
Virtual CISO and Virtual CIOOutsourced senior security and IT leadership for Canadian SMBs that need partner-board-level technology direction without the full-time hire.
AI consulting for regulated SMBsPractical Microsoft Copilot and AI-tool rollouts for Canadian law firms, accounting practices, wealth firms, and clinics, with the policy and supervision documentation each regulator requires.

Published technical writing

Mike authors the technical writing across fusioncomputing.ca on regulator-anchored IT, AI-deployment governance, and cybersecurity for Canadian SMBs. Below is a sample of the regulator-anchored flagships, deep-dives, and resources.

Find Mike

Mike publishes technical commentary on Canadian managed IT, AI governance for regulated SMBs, and cybersecurity practice management. Find him on the channels below or book a consultation directly.

LinkedInProfessional profile, employment history, and recommendations from Canadian SMB clients.
X (Twitter)Short-form commentary on Canadian regulator updates, AI rollout patterns, and MSP-industry news.
CrunchbaseFounder profile and Fusion Computing’s funding and operating history.
Book a consultationThirty-minute walk-through of your firm’s current IT stack and where Fusion fits.

Work with Mike

Thirty-minute walk-through of your firm’s current technology stack, the regulator-evidence gaps, and where Fusion’s vertical program fits. No pitch deck. No obligation.

Book a Consultation