D3 Security vs Microsoft Sentinel
D3 Security is an AI SOC platform that keeps a deterministic playbook engine beside four autonomy modes. Microsoft Sentinel is a cloud SIEM whose automation rules call Azure Logic Apps playbooks. They split on deployment and data handling, where the rubric reads D3 Security as documented and Microsoft Sentinel as not documented on the pages read on 2026-11-03.
1.95points apart
The difference that decides it
On deployment and data handling, Microsoft Sentinel does not state data handling on the page read, and notes that Azure portal support ends after 2027-03-31, leaving the Defender portal only; D3 Security states Azure cloud with residency in the United States, Canada, Ireland or Japan, plus an isolated on-premises option. d3security.com, read
8criteria
Rubric side by side
| Criterion | Weight | D3 Security | Microsoft Sentinel | Gap, first minus second |
|---|---|---|---|---|
| Native containment coverage (19 and 9 of 25 actions) | 25 | 7.7 | 4.7 | +3.0 |
| Published time-to-contain evidence with method | 15 | 4.0 | 3.5 | +0.5 |
| Approval, rollback and blast-radius controls documented | 15 | 8.0 | 5.5 | +2.5 |
| Explanation and audit trail | 15 | 8.5 | 6.0 | +2.5 |
| Integration depth documented | 10 | 8.5 | 6.5 | +2.0 |
| Detection-to-response coupling | 8 | 6.0 | 8.0 | -2.0 |
| Pricing transparency | 6 | 3.5 | 3.5 | level |
| Deployment and data handling | 6 | 9.0 | 3.5 | +5.5 |
| Total | 100 | 7.08 | 5.14 | 1.95 |
Full reasons and sources for every score are on the profiles of D3 Security and Microsoft Sentinel.
8.0 : 5.5approval score each
Approval and rollback controls
D3 Security. Page states "Built-in approval gates at every command-risk tier" and configurable gates for autonomous modes; rollback and blast-radius controls are not stated. d3security.com, read
Microsoft Sentinel. Docs describe a service account with explicit resource-group permissions (Owner needed to grant), rule order and expiry dates, but no approval gate or rollback for actions inside playbooks. learn.microsoft.com, read
19 : 9actions of 25
Containment coverage by domain
| Domain | D3 Security | Microsoft Sentinel |
|---|---|---|
| EDR | 6 of 6 | 3 of 6 |
| Identity | 4 of 5 | 3 of 5 |
| 3 of 5 | 1 of 5 | |
| Cloud | 3 of 5 | 2 of 5 |
| Network | 3 of 4 | 0 of 4 |
| All five | 19 of 25 | 9 of 25 |
Published time to contain: D3 Security, 4 to 8 minutes (vendor claim, grade C); Microsoft Sentinel, no published figure.
5buyer types
Verdict by buyer type
- regulated financial
- D3 Security has the stronger published case on approval and audit: it documents approval gates at every risk tier and an immutable audit record. Microsoft Sentinel documents permissions and rule expiry but no approval gate or per-action record.
- lean team
- Microsoft Sentinel is easier to size up before a call: it publishes pay-as-you-go and commitment pricing, with playbook runs billed separately. D3 Security prices by alert volume tier, shows no amounts, and lists SIEM, EDR and XDR integrations.
- MSSP
- Only D3 Security states anything for MSSPs: it reports cutting 145,000 alerts to 200 for human review at one unnamed MSSP customer (vendor claim). Microsoft Sentinel states no MSSP terms on the pages read.
- Microsoft estate
- Both name Microsoft pieces. D3 Security names Microsoft Sentinel and Microsoft Defender among its connectors; Microsoft Sentinel is the Microsoft SIEM itself and takes Defender XDR incidents as triggers.
- CrowdStrike estate
- Only D3 Security says anything specific: it names CrowdStrike among its connectors. Microsoft Sentinel states no CrowdStrike-specific detail on the pages read.
When to pick each
Pick D3 Security when deployment location and data handling are fixed by policy, because it states Azure cloud with residency in the United States, Canada, Ireland or Japan, plus an isolated on-premises option.
Pick Microsoft Sentinel when detection and response should arrive in one product, because it triggers on incidents and alerts created inside the product, including Defender XDR incidents, so no separate SIEM is needed.
Read dates are on each source link. See also D3 Security alternatives and Microsoft Sentinel alternatives, or the buyer-type rankings.