NTT Security Holdings vs Thales (S21sec)
NTT Security Holdings and Thales (S21sec) are both Services firms that work with your existing tools. NTT Security Holdings targets Mid-market and Enterprise organizations, while Thales (S21sec) serves Enterprise. NTT Security Holdings includes 5 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network, OT/ICS), compared to 2 for Thales (S21sec) (Network, OT/ICS).
Buyer brief
NTT Security Holdings and Thales (S21sec) are both Services firms that work with your existing tools. NTT Security Holdings targets Mid-market and Enterprise organizations, while Thales (S21sec) serves Enterprise. NTT Security Holdings includes 5 attack surfaces in base pricing (Endpoint, Cloud, Identity, Network, OT/ICS), compared to 2 for Thales (S21sec) (Network, OT/ICS).
NTT Security Holdings offers broader coverage (5 surfaces vs. 2). Thales (S21sec) may suit teams that need depth over breadth.
At a glance
| FIELD |  |  |
|---|---|---|
| Best fit | Global enterprises needing follow-the-sun SOC coverage across NA, Europe, and APAC | Critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response |
| Price | SamurAI XDR SaaS: $3.33/endpoint/mo; MDR custom | Custom quote |
| Response authority | 1/6 actions · Configurable | 2/6 actions · Configurable |
| Stack | Works with existing stack | Works with existing stack |
| Data access | Dashboards | Reports only |
| Warranty | None listed | None listed |
- Best fit
- Global enterprises needing follow-the-sun SOC coverage across NA, Europe, and APAC
- Price
- SamurAI XDR SaaS: $3.33/endpoint/mo; MDR custom
- Response authority
- 1/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Dashboards
- Warranty
- None listed
- Best fit
- Critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response
- Price
- Custom quote
- Response authority
- 2/6 actions · Configurable
- Stack
- Works with existing stack
- Data access
- Reports only
- Warranty
- None listed
Detailed comparison
| FIELD | NTT Security HoldingsTECH-AGNOSTIC | Thales (S21sec)TECH-AGNOSTIC |
|---|---|---|
| Fit | ||
| Target size | Mid-market, Enterprise | Enterprise |
| Sentiment | Positive | Mixed |
| Your stack | ||
| Approach | Works with your tools | Works with your tools |
| EDR integrations | CrowdStrike Falcon InsightMicrosoft Defender for EndpointVMware Carbon Black CloudFortinet FortiEDRTrellix Endpoint Security | Customer endpoint security tools |
| SIEM integrations | Fortinet FortiAnalyzer | Customer SIEM platformsThales SOC tooling |
| Coverage | EPEndpoint: CoveredCloudCloud: CoveredIDIdentity: CoveredSaaSSaaS: Optional add-onNetNetwork: CoveredOTOT/IoT: Covered | EPEndpoint: LimitedCloudCloud: LimitedIDIdentity: LimitedSaaSSaaS: LimitedNetNetwork: CoveredOTOT/IoT: Covered |
| Response | ||
| Response type | Active Remediation | Active Remediation |
| Approval policy | Configurable | Configurable |
| Response actions | Isolate | ContainCustom playbooks |
| IR included | Separate | ✓ Included |
| Cost | ||
| Price range | Not published. MDR is custom quoted. Vendor-published SamurAI XDR SaaS (self-service, not MDR): $3.33/endpoint/month. | Not published |
| Minimum seats | None | None |
| Breach warranty | – | – |
| More details | ||
| Requires own agent | No | No |
| Endpoints | ✓ Included | ~ Limited |
| Cloud workloads | ✓ Included | ~ Limited |
| Identity | ✓ Included | ~ Limited |
| SaaS apps | + Optional | ~ Limited |
| Network | ✓ Included | ✓ Included |
| OT/ICS | ✓ Included | ✓ Included |
| Threat hunting | ✓ Included | ✓ Included |
| Response SLA | ≤30 minutes | Not disclosed |
| 24/7 coverage | ✓ | ✓ |
| Pricing model | Custom quoted based on environment size, coverage areas, and service components. Note: SamurAI XDR SaaS (a self-service product, not MDR) is $3.33/endpoint/month. MDR pricing is not published. | Custom quote for Thales Cyber Detection and Response, Managed Security Services, SOC and MDR. Public prices are not published. |
| Hidden cost warnings | Incident response is NOT included in base MDR. Requires a separate retainer with separate pricing.. SamurAI Endpoint Agent and Network Traffic Analyzer are add-ons, not included in base service. Clarify which components are in your quote.. Gartner reviewers consistently cite NTT as expensive relative to competitors.. Alert severity over-classification reported by customers, leading to unnecessary after-hours calls for already-blocked threats.. New log source integrations can take significant development time according to customer reviews.. Analysis quality and portal flexibility vary by SOC region per Gartner feedback. | The current S21sec domain routes to Thales-branded services, so buyers wanting legacy S21sec-specific delivery should confirm contracting entity, SOC location and delivery team.. Public pages do not publish prices, minimum terms, service credits, MTTD/MTTR or formal MDR SLAs.. Thales offers a broad cybersecurity services portfolio; buyers should separate base MDR scope from CTI, DRPS, DFIR, CERT, ICS monitoring and advisory services.. Named endpoint, identity and cloud containment actions are not public and should be confirmed tool by tool.. Data retention, raw log access, offboarding and detection-content export rights are not described publicly. |
| Data portability | Partial | Partial |
| Contract terms | Annual, Multi-year | Custom cyber detection and response engagement, Managed Security Services, SOC and MDR, Critical-infrastructure cybersecurity services |
| Channels | EmailPortalPhone | EmailPhonePortal |
| Data access | Dashboards | Reports only |
| Dedicated analyst | – | – |
| SOC regions | North AmericaEuropeAsia-Pacific | EuropeMEAAPAC |
| Onboarding | Official docs show ~16 days (2-day portal activation, 14-day orientation). NTT markets 'less than one week' but typical deployments are longer. | Not published. Thales describes customer-centric service roadmaps and selecting/deploying detection and response technologies, but no standard MDR onboarding timeline. |
| Industry focus | ManufacturingIndustrialFinancial ServicesEnergyHealthcareGovernmentTelecommunications | Critical InfrastructureGovernmentDefenseEnergyManufacturingAviationSpaceFinancial ServicesTelecommunicationsHealthcareTransportationAutomotiveUtilitiesMaritime |
| MTTD | Not published | Not published |
| MTTR | Not published | Not published |
| Community view | Gartner Peer Insights 4.4/5 (21 reviews). NTT DATA (parent group) ranked second by revenue in Gartner Market Share Analysis for Managed Security Services Worldwide 2022. Reviewers praise responsiveness, team continuity, and global reach. Recurring complaints: expensive pricing, alert severity over-classification, and inconsistent analysis quality across SOC regions. Very limited Reddit/community discussion. | The current public evidence is strong for Thales-branded global SOC, MDR, CTI, DFIR and critical-infrastructure detection and response, but weak for S21sec as a standalone public MDR brand. Buyers should validate current delivery model, SOC location, response authority, pricing and whether the contract is with Thales/S21sec in the relevant country. |
| Compliance | ISO 27001SOC 2 | DORATIBER-EUPCI DSSEASA Part-ISEASAICAOUNECE |
| Certifications | ISO 27001SOC 2ISAE 3000 | 8 threat intelligence and AI-driven SOCs around the worldSOCs in France, Morocco, the Netherlands, Belgium and Luxembourg, Portugal and Spain, and New Zealand and Australia |
| Founded | 2000 | – |
| Data retention | 12 months standard retention for security incident data | Not published. Public pages do not describe default log retention, raw log access, storage tiers or export terms for Thales SOC and MDR. |
| API available | ✓ | – |
| Website | Visit → | Visit → |
FAQ
What is the main difference between NTT Security Holdings and Thales (S21sec)?
NTT Security Holdings is a Services firm that is technology-agnostic (works with your existing tools). Thales (S21sec) is a Services firm that is technology-agnostic (works with your existing tools). SLA commitments differ: NTT Security Holdings offers ≤30 minutes, Thales (S21sec) offers Not disclosed. NTT Security Holdings covers 5 attack surfaces in base pricing vs. 2 for Thales (S21sec).
How do NTT Security Holdings and Thales (S21sec) differ in response capabilities?
NTT Security Holdings supports 1 autonomous actions (endpoint isolation) and approval is configurable. Thales (S21sec) supports 2 autonomous actions (custom playbooks, network containment) and approval is configurable. Incident response is not included with NTT Security Holdings and included with Thales (S21sec).
How does NTT Security Holdings pricing compare to Thales (S21sec)?
NTT Security Holdings pricing: Not published. MDR is custom quoted. Vendor-published SamurAI XDR SaaS (self-service, not MDR): $3.33/endpoint/month.. Thales (S21sec) pricing: Not published. Watch for with NTT Security Holdings: Incident response is NOT included in base MDR. Requires a separate retainer with separate pricing.; SamurAI Endpoint Agent and Network Traffic Analyzer are add-ons, not included in base service. Clarify which components are in your quote.. Watch for with Thales (S21sec): The current S21sec domain routes to Thales-branded services, so buyers wanting legacy S21sec-specific delivery should confirm contracting entity, SOC location and delivery team.; Public pages do not publish prices, minimum terms, service credits, MTTD/MTTR or formal MDR SLAs..
Should I choose NTT Security Holdings or Thales (S21sec)?
Choose NTT Security Holdings if: global enterprises needing follow-the-sun SOC coverage across NA, Europe, and APAC. Choose Thales (S21sec) if: critical infrastructure and public-sector buyers that need Thales/S21sec regional cyber detection and response. NTT Security Holdings is not ideal for sMBs wanting transparent pricing and self-service onboarding. Thales (S21sec) is not ideal for buyers that need a standalone legacy S21sec-branded MDR package.
Daylight Security
AI-native MDR for buyers comparing active remediation across endpoint, cloud, identity, and SaaS. Daylight works with existing EDR/SIEM stacks and uses ChatOps-native collaboration, so it can be a useful third reference point in this comparison.