Marcus Burnap - Microsoft Security -AI Sentinel Defender XDR
Marcus BurnapWelcome to MB Cloud Teck, a site that aims to share knowledge, increase security, and solve problems with the latest technology. Principal Consultant | MVP | MCT | CISSP | Microsoft SME | Cybersecurity | Defender XDR | Sentinel | Security Copilot
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 67 | Founded | 3 years ago | Last Issue | 19 days ago |
| Active | |||||
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mbcloudteck.substack.comLatest Issues
Shadow AI (Frontier)
A new Microsoft 365 admin experience has appeared, focused on Shadow AI discovery and control.
There is a lot of detail still to follow up on, especially around how Microsoft will dynamically identify, classify, and control these tools...
When Agents Become the Front Door: The Data Security Bill Nobody Budgeted For
Less of a core security post, but very relevant to recognise a change currently taking place! Something subtle is happening in enterprise tech stacks. The tools we’ve always treated as “where work happens” are starting to look like endpoint...
Learning about Multi-Agent AI - Specifically Foundry & becoming Production-Ready
I’ve seen a few AI demos that look brilliant… right up until you ask them to do something messy and real. (The Demo Gods are REAL) The truth is, a single large language model (LLM) answering questions isn’t the same thing as an agent gettin...
Defender for AI Agents ! A Feature I Completely Missed at Ignite
I’ll be honest: I thought I’d done a decent job keeping up with the Ignite 2025 firehose. I skimmed the Book of News, watched one or two big keynotes, caught up on the usual Sentinel and XDR updates… and still completely sailed past one of...
Sentinel Connector to Table Mapping (and why This Microsoft Sentinel MCP Server) actually matters!
If you have spent any time building or running Microsoft Sentinel, (Or explaining to a client) you already know one hard truth:
You do not really pay “per connector”.
You pay per table, per gigabyte, per day.
Connectors are just the tap...
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The writers behind this newsletter.
Marcus leads the strategy, design, and delivery of Microsoft-focused cyber defense services for large and complex organisations.
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