Signal
Practical guidance on managed IT, cybersecurity, cloud, infrastructure, and AI — written by the engineers and advisors who run these systems for clients every day. We publish what actually moves risk, cost, and uptime: how to detect and respond to threats, right-size the cloud, run IT to real SLAs, keep networks resilient, and apply AI where it earns its keep. No vendor talking points — just what we’d tell a client.
Browse by topic
Cybersecurity
Cybersecurity guidance from intSignal — threat detection, zero trust, identity, and compliance for enterprise security teams.
Cloud
Cloud insights from intSignal — public, private, and hybrid architecture, migration, and cost discipline for enterprise teams.
Managed IT
Managed IT insights from intSignal — operations, SLAs, help desk, and MSP practices for reliable enterprise technology.
Infrastructure
Infrastructure insights from intSignal — networking, telecom, SD-WAN, and the systems enterprises depend on every day.
AI
AI insights from intSignal — practical machine learning, automation, and AIOps applied to enterprise operations.
All articles
311 articles
CybersecurityAI-Accelerated Ransomware: What Actually Changed, and What To Do About It
Ransomware volume is up sharply and AI is part of why. Which parts of the attack got cheaper, which did not, and the controls that still decide outcomes.
CybersecurityCisco Catalyst SD-WAN Manager Authentication Bypass: What to Patch and What to Check
CVE-2026-76504 gives unauthenticated attackers admin on Catalyst SD-WAN Manager, with no workaround. The fixed releases, and the log string to hunt for.
CybersecurityOne Provider, 495 Customers: Concentration Risk After the IDC Frontier Ransomware Attack
Ransomware at one Japanese cloud provider took 495 customer organisations offline. What concentration risk looks like, and what to ask your provider.
CybersecurityFixing the Refrigeration Attack: A Remediation Plan for Danfoss AK-SM and AK-SC Sites
A step-by-step fix for the October 2026 refrigeration attack: find the controllers, cut internet exposure, patch to R4.3.1, isolate end-of-life units.
- Cybersecurity
Three Edge Appliance Zero-Days in Two Weeks: Why Patching Is Not Enough
FortiMail, Ivanti and Cisco SD-WAN Manager were all exploited before patches shipped. The fixed versions, and what to do when the patch arrives late.
CybersecurityWarlock Ransomware and SharePoint ToolShell: Why Patching Alone Leaves You Exposed
Warlock still hits on-premises SharePoint via ToolShell. Patching does not evict the attacker — you have to rotate the ASP.NET machine keys too.
CybersecurityEnterprise OT Security Architecture: How to Secure Connected Operational Systems at Scale
A reference architecture for OT across many sites: asset discovery, zone segmentation, an IT/OT DMZ, privileged remote access and passive monitoring.
CybersecurityFrench Grocery Store Refrigeration Hack Shows the Growing Risk of OT Cyberattacks
Attackers forced refrigeration into defrost at ~700 French supermarkets. Why internet-exposed controllers allowed it, and what US operators should do.
CybersecurityLow-Cost OT & IoT Security Guide for Small and Mid-Sized Businesses
A low-cost way to secure refrigeration, HVAC, cameras and other connected equipment: VLAN segmentation, firewall rules, and safe vendor remote access.
AIDesigning the Handoff: Where AI Agents Should Give Up
The quality of an AI agent is decided less by what it handles than by how well it recognises what it cannot, and what it passes on when it does.
AIThe Actual Maths on an AI Receptionist
Metered per-minute AI pricing makes the business case easy to calculate and easy to get wrong. The four numbers that decide it, and the failure mode that destroys the return.
InfrastructureDesigning an Auto-Attendant Callers Don't Hate
Most phone menus are organised around the company's org chart and read out in the wrong order. A short set of rules that cut misroutes and abandoned calls without adding staff.
Managed ITYour Build Depends on Google Fonts Being Up. It Shouldn't.
A deploy failed with twenty-four font resolution errors and no code change to blame. Self-hosted font loaders fetch at build time, which quietly makes a third party part of your release pipeline.
InfrastructureCabling and Labelling: The Cheapest Thing You Will Ever Regret Skipping
An undocumented comms room costs an hour every time anyone touches it, forever. The labelling scheme, the documentation that is worth keeping, and what to specify when ordering.
InfrastructureRing Groups, Hunt Groups and Queues: Choosing the Right One
Three mechanisms that look similar and behave very differently under load. Picking the wrong one is why small teams miss calls and callers wait listening to nothing.
InfrastructureCall Recording and Consent: What California Businesses Need to Get Right
California requires all-party consent to record a confidential communication. What that means for a business phone system, how the rules interact across state lines, and the controls that actually implement them.
- Cybersecurity
California Privacy Law: What a Business Actually Has to Do
Thresholds, consumer rights, the sale-and-sharing distinction that catches advertising pixels, and the operational work of honouring a deletion request across every system that holds the data.
AIEvaluating AI Voice Capabilities Without Being Sold a Demo
Every AI voice demo works, because demos are built from calls the system handles well. The questions and the test that tell you how it behaves on your actual calls.
CybersecurityCMMC Level 2: What Defence Suppliers Actually Have to Do
If your contracts involve controlled unclassified information, assessed CMMC is becoming a condition of award rather than a promise to comply. The practical shape of Level 2 readiness.
Managed ITThe Deploy That Fails Because of Your Git Email
A push lands, the build never starts, and nothing in the repository explains why. Hosting platforms gate deploys on the commit author identity, and a one-character domain typo is enough to stop a release.
InfrastructureMeeting Rooms That Work: Standardising Conference Room AV
Every room different, every meeting starting five minutes late. The case for one specification, the decisions that matter, and the support model that keeps rooms working.
Managed ITIT for Construction: Sites That Move, Connectivity That Doesn't Exist Yet
Project sites have no infrastructure, change every few months, and are full of people who need drawings on a tablet in a muddy field. What actually works.
- Infrastructure
The Contact Centre Metrics Worth Managing (and the Ones That Mislead)
Average handle time is the most optimised and least useful number in most support operations. What to measure instead, how the common targets interact, and why averages hide the calls that lose customers.
Managed ITYour CSS Override Is Correct and Still Ignored: Load Order in Hybrid Sites
A rule with the right selector, the right property and no typo still loses, because a legacy stylesheet loads after the new one. How to diagnose it properly instead of reaching for !important.