Windows 11
The 10 IT Mistakes Costing Businesses Thousands in 2026
In 2026, most SMBs in Quebec rely entirely on their IT environment without really knowing whether it’s secure or optimized.
Here are the most common mistakes we see in businesses, along with practical fixes.
1. Poorly configured MFA
Turning on MFA isn’t enough. A poor configuration still leaves major gaps.
- Uncontrolled logins
- Insufficient protection
Fix: set up Conditional Access policies with Microsoft Entra.
2. Backups that were never tested
How to fix it
Having a backup you’ve never tested gives you a false sense of security.
- Restores that don’t work
- Corrupted data
Fix: test your restores and keep an offsite backup.
3. Admin access that’s out of control
How to fix it
Too many admin accounts significantly raise your security risk.
- Attacks spread faster
- Critical human errors
Fix: apply the principle of least privilege.
4. No IT audits
How to fix it
Without an audit, you can’t spot the gaps or the money you’re losing.
- Hidden risks
- Costs that stay unoptimized
Fix: run an annual IT audit.
5. Overpaying for Microsoft 365
How to fix it
A lot of businesses pay more than they need to for their licenses.
- Unused licenses
- Poor configuration
Fix: optimize licensing based on actual usage.
6. No monitoring
Incidents often get caught too late.
- Extended downtime
- Lost productivity
Fix: 24/7 monitoring with alerts.
7. No cybersecurity plan
SMBs are a top target.
- Phishing
- Ransomware
Fix: put a complete strategy in place.
8. Undocumented infrastructure
Poor documentation creates serious risk.
- Lost information
- Dependence on one person
Fix: document every system.
9. Poorly managed employee access
Access for former employees often stays active long after they’ve left.
- Risk of data leaks
- Unauthorized access
Fix: automate onboarding and offboarding.
10. No strategic IT partner
Without a strategy, IT becomes a cost instead of an advantage.
- Wasted spending
- Poor decisions
Fix: work with a vCIO.
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Frequently asked questions about business IT mistakes
Which mistake should I tackle first if my budget is tight?
Start in this order: 1) turn on MFA for every account, 2) check that your backups actually work and have been tested, 3) update every device. These three actions fix the most commonly exploited weaknesses and cost almost nothing if you already have Microsoft 365.
How do I know if my business is making these mistakes?
A basic IT audit will quickly surface the gaps. Without one, ask yourself: does every employee have MFA turned on? Do I know exactly where my backups live and when they were last tested? Are all my devices up to date? If you’re not sure, that’s usually a sign there’s work to do.
Are these mistakes specific to SMBs, or do larger companies make them too?
These mistakes affect businesses of every size, but the consequences hit SMBs disproportionately hard. A large company can often absorb a major incident thanks to its reserves. An SMB may not recover at all: some studies show 60% of SMBs hit by a major cyberattack close within 6 months.