Is XDR overkill for an SMB?
XDR is not automatically overkill, it is overkill if you have no EDR yet or nobody watching alerts. Under 50 endpoints, Defender for Business or an MDR gives more value than a homegrown XDR stack. From 100 endpoints, multi-site, or compliance pressure, XDR becomes practical.
Try this first
- 1First inventory what you already have. Microsoft 365 Business Premium and E5 include Defender XDR (endpoint, identity, mail, cloud apps), do not buy what you have.
- 2Assess whether someone triages incidents inside the hour. No person, no XDR. Then MDR is the more honest choice.
- 3Count the data sources you are blind to today: firewall logs, identity events, SaaS app sign-ins, server logs. Three or more, and XDR (or a SIEM next to it) adds value.
- 4Ask for concrete demos with your real log volume. Some XDR products become unaffordable once real volumes are loaded, and that bill is not in the quote.
- 5Look at Microsoft Sentinel as an XDR layer on top of Defender. For tenants already on Microsoft, that is cheaper and faster than a separate SIEM like Splunk or QRadar.
When to bring us in
If you are in a sensitive sector (healthcare, finance, manufacturing with IP) at around 100 staff, a chat with an MSSP or MDR partner is more valuable than building XDR yourself. It is about hours per week, not software.
See also
- I think I clicked a phishing linkNo shame, happens to everyone. The next fifteen minutes matter.
- A colleague's account is acting strangelySending mail in their name, rules hiding folders, unusual sign-ins. Suspicious.
- Lost the MFA app: new phone, no backup codesClassic problem after a phone upgrade. You are not the first to be locked out.
None of the above fits?
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Or skip the DIY entirely
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