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IT Insights

IT Insights for Modern Businesses

Practical IT guidance, industry news, and technology advice from the Sentinel Infrastructure team. Written for business owners and managers, not IT specialists.

Sentinel Insights FEATURED Why Your Business Email Shouldn't Use Gmail 5 min read · IT Advice How a professional email address builds trust... 📋 5 Signs Your IT Needs an Upgrade 4 min read · IT Support 🤖 AI Automation for Small Businesses 6 min read · AI & Automation + more articles →
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Maintenance

My WordPress Website Has Been Hacked: An Emergency Recovery Guide for UK Businesses

Eight steps to move from initial panic to a fully-recovered WordPress site, with what to check, what to preserve, and when to hand it over…

August 2026 · 5 min read
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Maintenance

This Page Doesn’t Exist Errors on WordPress: Common Causes and How to Fix Them

The six most common causes of "this page doesn’t exist" errors on WordPress, in the order to check them, with the fix for each.

August 2026 · 5 min read
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Maintenance

How to Patch a Critical WordPress Vulnerability Without Taking Your Site Offline

The process Sentinel uses to patch critical WordPress vulnerabilities on live UK client sites without interruption, including the rollback plan.

August 2026 · 5 min read
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IT Support

IT Compliance for UK Regulated Firms: What the FCA, ICO and Cyber Essentials Require

The main compliance frameworks that apply to UK regulated firms, what each actually asks for, and what a compliance-ready IT partner should provide.

August 2026 · 5 min read
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Maintenance

The 5 Most Common WordPress Vulnerabilities Found in UK SME Security Audits

The five vulnerabilities that account for the majority of exposures we find on UK SME WordPress sites, with the fix for each.

August 2026 · 5 min read
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Hosting

Reseller Hosting vs Managed WordPress Hosting for Agencies: Which Is Right?

Reseller hosting versus managed WordPress hosting: the trade-offs, and how to work out which one is right for your agency.

August 2026 · 5 min read
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IT Support

Why External Vulnerability Scans Miss the Most Important Issues

What external vulnerability scans do well, what they cannot see, and when a code-level audit is the right next step.

August 2026 · 5 min read
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Email

Why Your Business Email Should Not Be on Gmail or Hotmail

The problem with free email for business When you email a potential client from a Gmail or Hotmail address, you immediately undermine your credibility. It…

March 2025 · 4 min read
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Domains

What Happens When Your Domain Expires and How to Avoid It

What happens when a domain expires When your domain name expires, the consequences are immediate and far-reaching. Your website goes offline. Every email address associated…

February 2025 · 5 min read
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