MSP vs MSSP vs vCISO vs In-House: Who Should Run Security?
MSP, MSSP, vCISO or an in-house hire: roles, 24/7 monitoring, independence and cost models compared to decide who runs cybersecurity at your small business.
Facts verified : October 2026This comparison is not sponsored.
Our recommendation for your situation
10-person law office in Sherbrooke with no in-house IT
Managed IT service provider (MSP)
Well-run IT first, with security written into the contract: MFA, tested backups, patching. A periodic independent audit confirms it's actually done.
80-employee distributor in Laval with one in-house IT technician
Managed security service provider (MSSP / MDR)
The technician keeps operations and patching; the MSSP watches alerts at night and on weekends, when nobody is in the office.
An employee dedicated to IT or security, on site and part of the team.
Best for
Larger small businesses whose specialized systems (OT, in-house software) need deep knowledge.
Pricing
Salary, benefits, training and tools; one position can't cover nights, weekends or vacations
Strengths
Knows the business, the people and the systems
On site and quick to react
Keeps knowledge in-house
Limitations
Hard to hire: 65% of Quebec small and medium businesses say they lack qualified staff to manage cyber risk (KPMG, 2023)
One person can't provide 24/7 monitoring
Knowledge walks out the door if they leave
Ask a small business who looks after cybersecurity and you'll often get a vague answer: "our IT guy," "our provider," "we have antivirus." That's not a criticism. According to a 2023 KPMG survey, 65% of Quebec small and medium businesses don't have qualified staff to manage cyber risk.
There are four models to choose from: a managed IT service provider (MSP), a managed security service provider (MSSP), a virtual CISO (vCISO) and in-house staff. They don't do the same job, and most businesses end up combining two of them.
Our method
We compare operating models, not providers. The criteria draw on publications from the Canadian Centre for Cyber Security, CISA, the UK's NCSC and NIST, reviewed in October 2026.
An MSP runs your IT: it applies patches, manages accounts, watches backups and answers support calls. Security is part of its job to the extent the contract says so.
An MSSP, or an MDR service, watches. The UK's NCSC describes a security operations centre's role as limiting damage by detecting and responding to attacks that get past your preventive controls. This is the service that reacts at 3 a.m.
A vCISO governs. The Canadian Centre for Cyber Security recommends that every organization name someone in a leadership role who is specifically responsible for IT security. A vCISO doesn't replace that person: it equips them, sets priorities, writes policies and makes sure the plan moves forward.
In-house staff know the business better than anyone. The limit is simple arithmetic: one person can't cover nights, weekends or their own vacations.
Outsourcing the work doesn't outsource the responsibility. The Canadian Centre for Cyber Security is explicit: the organization remains accountable for incident response, even when the provider carries out part of it. It also recommends that the service agreement set out response times, communication channels and the escalation process.
The provider is itself a risk. MSPs are prime targets because their privileged access opens the door to many clients at once. An advisory from CISA and its partners, including the Canadian Centre, recommends requiring by contract multi-factor authentication on every provider account, retention of key logs for at least six months, and removal of the provider's access when the contract ends. Our guide on how to evaluate your IT provider's security lists the questions to ask.
Finally, under Quebec's Law 25, the privacy officer is by default the person with the highest authority in the business. No provider takes on that role for you without a written delegation; confirm those choices with legal counsel.
When the same provider configures your systems, monitors them and tells you everything is fine, nobody is checking its work. It's not a question of honesty: it's hard to objectively assess what you set up yourself. A vCISO separate from the MSP, or a periodic independent audit, fills that gap.
Who applies patches today, and how quickly? If nobody can answer, start with an MSP or an in-house hire.
Who would see an alert at 3 a.m. on a Sunday? If the answer is "nobody," you need an MSSP or MDR service.
Who fills out insurer and client questionnaires? If it's leadership, alone and unsupported, a vCISO lightens the load.
Who checks the provider's work? If nobody does, plan for an independent review.
Our ongoing security partner service acts as a vCISO for small businesses, working alongside their existing IT provider.
Frequently asked questions
Does my IT provider automatically handle cybersecurity?+
Not necessarily. Some contracts cover support and maintenance without alert monitoring, backup testing or an incident response plan. Reread yours and ask in writing what's included. CISA recommends that contracts state whether the provider or the customer owns hardening, detection and incident response.
What's the difference between an MSSP and an MDR service?+
The terms overlap. An MSSP generally offers a range of managed security services, such as firewall management or log monitoring. An MDR (managed detection and response) service focuses on detecting attacks and responding, for instance by isolating a compromised workstation. Read the contract: the authorized actions and response times matter more than the label.
Who's responsible for an incident if IT is outsourced?+
Your business. The Canadian Centre for Cyber Security points out that the organization remains accountable for incident response, even when the provider carries out part of it. Under Quebec's Law 25, it's also the business that must notify the Commission d'accès à l'information and affected individuals when there's a risk of serious injury. Confirm how roles are split with legal counsel.
Can a vCISO be our privacy officer under Law 25?+
Law 25 assigns that role by default to the person with the highest authority in the business, who can delegate it in writing. A vCISO can certainly support that person on the security side. Handing the function itself to an outside person raises questions to check with legal counsel.