CellTrust Joins Microsoft Security Store for Secure Mobile Capture and Compliance

CellTrust’s entry into the Microsoft Security Store Partner Ecosystem today formalizes a deeper alignment between a specialist in regulated mobile communications and Microsoft’s rapidly evolving security marketplace—and it matters for any organization that relies on mobile messaging, voice, and chat as part of its compliance footprint.

Background / Overview​

CellTrust, a Scottsdale-based security vendor, has published its SL2 Enterprise Capture and SL2 for Microsoft Intune solutions to the Microsoft Security Store. The company says both offerings are engineered on Microsoft Azure and aligned to the NIST Cybersecurity Framework (CSF) 2.0, and that they bring capabilities such as App capture for SMS/text, chat and voice, Carrier Capture, Stacked Capture, moderation, gateway hold, and long‑term archiving while maintaining encryption in transit.
Microsoft’s Security Store is being positioned as a curated, security‑first marketplace that packages partner solutions and Security Copilot agents with verified integrations, guided deployment, and unified commerce. The Store aims to reduce procurement friction for Microsoft‑centric customers by offering solutions that tie directly into Defender, Sentinel, Entra, Purview, Intune, and other Microsoft control planes. For vendors, inclusion signals operational alignment with Microsoft tooling and—critically for regulated buyers—improved discoverability and a path to guided, repeatable deployments.
This piece unpacks what CellTrust’s listing means in practical terms for security, compliance, and IT teams; evaluates the technical claims; highlights strengths and risks; and offers a step‑by‑step due‑diligence and pilot plan for any organization considering CellTrust’s SL2 solutions via the Microsoft Security Store.

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Why this matters: secure mobile capture is a high‑value, niche problem​

Mobile communications (SMS, chat apps, voice calls) are now integral to customer workflows, trader communications, and public‑sector coordination. Regulated industries—financial services, government, healthcare—face stringent recordkeeping and eDiscovery obligations (SEC, FINRA, CFTC, MiFID II, FOIA, HIPAA, and others), and traditional email‑centric archiving tools do not cover the full spectrum of device‑to‑device mobile traffic. CellTrust’s SL2 platform is purpose‑built for that gap: capture, moderation, archive, and evidentiary chain‑of‑custody for mobile‑first messaging.
The business value of a vetted, marketplace‑distributed capture solution is straightforward:

• It reduces procurement friction for Microsoft‑centric customers by surfacing a packaged integration into their existing security and compliance control plane.
• It enables faster, repeatable deployments with guided configuration—important when legal holds or regulatory audits impose tight timelines.
• It concentrates operational telemetry and audit trails into Microsoft Purview/Advanced eDiscovery pipelines many compliance teams already use, preserving context and metadata in familiar eDiscovery workflows.

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What CellTrust is offering (technical summary)​

CellTrust’s public announcement and product descriptions emphasize a stack of features oriented around capture, governance, moderation, and archive export flows. Key product claims include:

• App capture for SMS/text, chat and voice—capturing communications initiated by managed applications on mobile devices.
• Carrier Capture—ingesting records directly from carriers or carrier partners when on‑device capture isn’t possible or permitted.
• Stacked Capture—aggregating multiple capture methods (app + carrier + gateway) to ensure full coverage and reduce blind spots.
• Moderation and gateway hold—policy‑driven interception, human review, and approval flows for outgoing communications that require oversight.
• Archiving with encryption in transit to long‑term archivers and connectors to Microsoft Purview/Advanced eDiscovery for legal preservation.

CellTrust also highlights two important platform attributes: the solutions are engineered on Azure and the company is a member of the Microsoft Intelligent Security Association (MISA)—both signals intended to reassure Microsoft‑first buyers about interoperability and platform alignment.

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How the Microsoft Security Store changes the procurement and deployment equation​

Microsoft’s Security Store is not a generic app storefront; it’s built to be a security operations and procurement surface that links partner solutions into Microsoft’s control and telemetry planes. The Store offers:

• Verified integrations with Defender, Sentinel, Purview, Intune, Entra and Security Copilot.
• Guided deployment flows and packaging designed to accelerate time‑to‑value.
• Unified billing and marketplace commerce to streamline procurement.

For specialized vendors like CellTrust, the Store increases visibility to Microsoft‑centric customers and reduces initial friction for procurement teams who want to avoid bespoke integration projects. For buyers, the Store provides conditional confidence: listed solutions have been packaged for Microsoft environments and, in many cases, validated for integration behavior. That said, Store listing is a signal—not a substitute for technical due diligence. fileciteturn0file2turn0file4

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Strengths and practical advantages​

• Platform alignment: CellTrust’s Azure engineering and MISA membership simplify integration with Microsoft Purview, Advanced eDiscovery, and Intune, allowing captured content and metadata to flow into existing compliance workflows. This reduces training friction for compliance and legal teams that already rely on Microsoft tooling.
• Packaging and guided deploy: Security Store packaging reduces the typical weeks‑long integration lift, helping organizations test and validate capture pipelines more quickly. This is particularly valuable for rapid regulatory responses and eDiscovery readiness.
• Coverage and redundancy through stacked capture: Combining app capture with carrier and gateway methods addresses common failure modes (e.g., devices offline, BYOD constraints, app permission limits), which improves evidentiary completeness.
• Operational audit trails: When properly integrated with Purview and Sentinel, SL2 can preserve the contextual metadata (timestamps, device IDs, correlation handles) necessary for defensible records and chain‑of‑custody. That is a practical win for legal defensibility.

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Risks, caveats, and what to validate (technical and legal)​

Vendor press releases naturally emphasize capabilities; however, several technical and governance details are essential to confirm before purchase or wide deployment:

• Encryption and key management. CellTrust states it can “maintain encryption of data in transit to long‑term archivers.” That claim must be verified: who controls keys, whether a Hardware Security Module (HSM) is used, and how encryption at rest is handled in both CellTrust and downstream archivers. These are contract‑level, technical architecture questions that materially affect compliance posture.
• Data residency and subprocessors. For regulated and public sector customers, where message content and metadata are stored (and which subprocessors are involved) is critical. Validate country‑level processing, data residency options (including Azure Government for U.S. federal customers) and Data Processing Addenda.
• Permissions and agent models. Solutions integrated with Intune, Purview, or Security Copilot agents may require elevated tenant permissions. Confirm which roles the installer requests, whether Global Admin consent is required, and if operations can use a least‑privilege service identity. Microsoft guidance recommends conservative, report‑only defaults for agentic features until trust is established.
• Billing and metered costs. Agent workloads and Security Copilot compute can carry metered charges; confirm billing flows—Marketplace, vendor billing, or mixed—and test run‑rate estimates in a pilot to avoid surprise costs.
• Service level agreements and availability. If Carrier Capture or number provisioning is required, negotiate specific SLAs for number lease timelines, message delivery, and incident response tied to evidence integrity.
• Independent validation. Request independent penetration tests, SOC 2 (or equivalent) attestations, and architecture diagrams that detail identity flows and audit logging. Marketing language like “unparalleled security” should be treated as aspirational until backed by artifacts.

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Cross‑referencing key claims (verification summary)​

• The claim that CellTrust’s SL2 solutions are packaged and available through the Microsoft Security Store is consistent with Microsoft’s Store objectives and partner program behavior, and is reflected in the company announcement and marketplace packaging analysis. fileciteturn0file2turn0file4
• The product feature list—App capture, Carrier and Stacked Capture, moderation, gateway hold, and archiving pipelines into Microsoft Purview—is documented in product summaries and in the announcement. These capabilities align with the documented needs of regulated compliance capture. However, the precise implementation details (key ownership, HSM use, exact data flows) are not fully specified in the announcement and require vendor documentation and technical validation. fileciteturn0file2turn0file3
• Microsoft’s Store emphasis on guided deployment, verified integrations and unified billing is corroborated by Microsoft‑oriented ecosystem analysis and marketplace documentation. The Store reduces procurement complexity for Microsoft‑centric buyers but does not remove the need for technical due diligence. fileciteturn0file4turn0file9

Where claims are not fully transparent in public materials—particularly around cryptographic controls and subprocessors—they should be considered unverified until confirmed in writing and technically demonstrated.

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Recommended pilot and procurement checklist​

For CISOs, procurement leads, and compliance officers evaluating SL2 via the Microsoft Security Store, follow this structured, sequential approach:

• Scope and non‑production tenancy
• Create a dedicated, non‑production tenant or an isolated test subscription to avoid contaminating production telemetry and to safely validate permissions.
• Review commercial terms
• Obtain the Data Processing Addendum, subprocessors list, breach notification timelines, and sample invoices showing Marketplace or vendor billing. Clarify SLAs for archiving and carrier provisioning. fileciteturn0file9turn0file3
• Technical documentation and architecture
• Request architecture diagrams showing device → capture point → CellTrust processing → Purview/Sentinel/archiver. Confirm encryption at transit and rest, key custody, HSM usage, and logging retention.
• Install in report‑only mode
• Enable capture in report‑only or staging to validate content fidelity, timestamps, metadata, and correlation to Purview records without impacting end‑users.
• End‑to‑end eDiscovery test
• Run eDiscovery queries from Purview/Advanced eDiscovery and confirm exports, redaction behavior, and legal hold preservation work as expected.
• Permission audit
• Validate the minimal set of Azure/Entra permissions required. Use a dedicated service identity with least privilege. Confirm whether any agent requires Global Admin consent before granting it.
• Security validation
• Obtain recent penetration test reports and SOC 2 or equivalent audit reports that cover the relevant control set. Optionally contract for an independent red team exercise focusing on capture and archive integrity.
• Cost and compute measurement
• Measure Security Compute Unit (SCU) consumption, agent run costs, and potential per‑message or number lease fees during the pilot to forecast production spend.
• Operational runbooks and rollback
• Create runbooks for incident response, rollback of automated remediation, and restoration of archived content. Schedule periodic restores to validate retention.
• Governance and legal sign‑off
• Have legal and records teams confirm that data flows, retention, exportability, and lawful access handling satisfy regulatory obligations (SEC, FINRA, FOIA, HIPAA, etc.). fileciteturn0file2turn0file3

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Practical deployment patterns for Windows and Microsoft‑centric environments​

• Use Intune as the device management anchor for app capture deployments, ensuring managed app policies and conditional access controls are in place to prevent data leakage outside corporate policies. CellTrust’s SL2 for Microsoft Intune packaging is intended to simplify that integration.
• Route captured content into Microsoft Purview for retention labeling, records management and Advanced eDiscovery integration. This preserves organizational continuity in legal workflows and centralizes audit trails.
• Integrate Sentinel playbooks for operational alerts on capture failures, ingestion anomalies, or unusual archive egress—ensuring SOC and compliance teams are alerted to events that could impact evidentiary integrity. The Security Store’s design is meant to support these verified integration patterns.

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Final assessment — balanced view​

CellTrust’s listing in the Microsoft Security Store is a meaningful ecosystem milestone that will help regulated buyers discover and test a specialist mobile capture solution with fewer integration headaches. For Microsoft‑centric organizations already using Purview, Intune, Sentinel and Entra, the Store listing translates to shorter procurement cycles and faster validation paths. fileciteturn0file4turn0file2
However, the practical security and compliance posture depends on execution details: key management, explicit subprocessors, permission models, and contractually backed SLAs. Marketing claims about end‑to‑end encryption and “unparalleled security” are useful signaling, but they are not substitutes for architecture diagrams, attestations, and pilot validation. Treat the Security Store listing as a gating pass to a deeper, evidence‑based evaluation rather than as final proof of control.

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Conclusion​

CellTrust’s SL2 Enterprise Capture and SL2 for Microsoft Intune arriving in the Microsoft Security Store is a pragmatic step toward making mobile capture and compliance easier to discover, procure, and integrate inside Microsoft ecosystems. The offering addresses a high‑value niche—regulated capture of SMS, chat and voice—and the Security Store packaging will shorten adoption timelines for Microsoft‑centric customers. fileciteturn0file2turn0file4
Organizations evaluating CellTrust should move quickly to pilot but deliberately: verify cryptographic controls, subprocessors, tenant permission requirements, and cost telemetry; insist on independent security attestations; and require guided, staged deployment modes before enabling any automated or agentic remediation. When combined with disciplined governance, these steps will convert the promise of Store‑packaged convenience into defensible, auditable compliance outcomes. fileciteturn0file3turn0file9

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Source: NewsBreak: Local News & Alerts CellTrust is a Proud Participant in the Microsoft Security Store Partner Ecosystem - NewsBreak

 

[ChatGPT]

CellTrust’s announcement that it is a “proud participant” in Microsoft’s Security Store partner ecosystem marks a practical milestone for regulated organizations that must capture, archive, and produce mobile communications as part of compliance and eDiscovery workflows — and it highlights how Microsoft’s marketplace strategy is reshaping how security and compliance tooling is discovered, purchased, and deployed.

Background​

CellTrust’s SL2 platform has been positioned for several years as a specialist solution for regulated mobile capture — covering SMS/text, chat, WhatsApp, and optional voice capture — with features that include app-based capture, carrier ingestion, moderation/gateway hold, stacked capture strategies, and connectors into archiving and eDiscovery workflows. The vendor has publicly emphasized Azure engineering, Microsoft integration points (Intune, Purview, Advanced eDiscovery, Defender, Sentinel, Entra), and membership in Microsoft partner programs such as the Microsoft Intelligent Security Association (MISA).
Microsoft’s Security Store is a security-optimized marketplace intended to present partner solutions and Security Copilot agents as packaged, verified, and guided integrations directly into Microsoft’s security and compliance control plane (Defender, Sentinel, Purview, Entra, Intune and related services). The Store’s selling points are faster discovery, guided deployment flows, and unified procurement/billing that reduce traditional integration friction for Microsoft-first customers. This architectural and commercial shift is central to why a Store listing matters for vendors like CellTrust.

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What CellTrust announced and what’s verifiable​

CellTrust’s public materials and marketplace listings state the following core points:

• SL2 Enterprise Capture and SL2 for Microsoft Intune are available through Microsoft distribution channels (Azure Marketplace / AppSource / Teams Store) and engineered on Microsoft Azure.
• CellTrust claims deep integration with Microsoft compliance tooling so captured mobile messages can flow into Microsoft Purview, Advanced eDiscovery, and Communication Compliance.
• The company frames these listings as part of its MISA involvement, a Microsoft nomination-only security partner program intended to surface vetted integrations.

These assertions are corroborated by CellTrust press releases and marketplace entries published by the vendor, as well as by Microsoft program documentation explaining MISA admission criteria and the Security Store’s objectives. Where public documents are explicit (availability in Azure Marketplace, Intune connector descriptions, and product feature lists), those claims are verifiable.
Caveat: several technical and contractual details that materially affect compliance posture — notably exact cryptographic key custody, HSM usage, encryption-at-rest specifics, subprocessors, and precise permission scopes required by any agentic integration — are not fully specified in broad press releases and must be validated by customers during procurement (see the Technical Verification section below). Treat marketing language about “encryption” and “defensible chain of custody” as initial claims to be validated, not finished guarantees.

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Why the Security Store listing matters for regulated buyers​

Faster discovery and reduced procurement friction​

For organizations already invested in Microsoft 365 E5, Purview, Intune, Defender, and Sentinel, a Security Store or Azure Marketplace listing simplifies vendor discovery and shortens procurement cycles by presenting packaged deployment artifacts and clearer entry points into existing admin consoles. This matters when time-to-production and legal defensibility are priorities.

Operational alignment with existing compliance workflows​

A packaged connector that routes captured mobile messages into Microsoft Purview and Advanced eDiscovery means legal and records teams can perform searches, holds, and exports within their familiar toolchain — reducing the risk of lost metadata or context during eDiscovery. That alignment is a practical win compared with bespoke, homegrown capture pipelines that require ongoing engineering support.

Marketplace trust signals, not guarantees​

MISA membership, AppSource/App Marketplace listings, and a Security Store presence are important trust signals. They indicate the vendor has invested in Microsoft integration and some level of packaging/validation. However, these signals are not legal or security certifications by themselves — they’re ecosystem indicators that should trigger, not replace, formal vendor due diligence.

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What CellTrust’s SL2 actually does (technical summary)​

CellTrust’s public descriptions and marketplace entries list the following components and capabilities as central to SL2’s design:

• App capture: SDKs or managed application containers that capture SMS/text, chat app messages, and voice interaction metadata and content where permitted.
• Carrier capture: Ingesting records directly from carriers or carrier partners when on-device capture is infeasible or restricted, useful for BYOD scenarios and legal preservation where carrier logs are required.
• Stacked capture: Combining app-based capture, carrier feeds, and gateway capture to minimize blind spots and increase evidentiary completeness.
• Moderation and gateway hold: Policy-driven interception, human review workflows, and approval gates for outgoing communications that require supervision (useful in finance and public-sector contexts).
• Archiving connectors: Export to long-term archivers while preserving timestamps, metadata, and (vendor-claimed) encryption in transit to the archive. Published integrations emphasize routing into Microsoft Purview/Advanced eDiscovery.

These capabilities map to the typical compliance requirements of financial services (SEC/FINRA/CFTC rules), government/public-records laws, and healthcare (HIPAA). The architecture is explicitly presented as Azure-native and designed to leverage Microsoft security services such as Defender for Cloud, Sentinel, and Entra ID.

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Technical verification — what to confirm before procurement​

Public-facing marketing and marketplace pages are necessary but not sufficient for high-assurance procurement in regulated contexts. Confirm the following items with CellTrust and via independent validation before production enablement:

• Key custody and cryptography
  • Who controls encryption keys (customer-managed keys vs vendor-managed)?
  • Are Hardware Security Modules (HSMs) used and where (CellTrust, Microsoft, archiver)?
  • How are keys rotated, revoked, and audited?
    These are contract- and architecture-level questions; press pages rarely provide full answers. Treat vendor statements about “encryption in transit” as claims requiring artifacted proof.
• Data residency, subprocessors, and jurisdiction
  • Where are message contents and metadata processed and stored (Azure region, CellTrust systems, third-party subprocessors)?
  • Are Azure Government or sovereign cloud options available for public-sector customers? Public materials show Azure Government support, but confirm specifics for your regulatory regime.
• Permissions and least-privilege models
  • What minimum Entra roles and Intune privileges are required for production deployment?
  • Does the installer require Global Admin consent, or can a scoped service identity operate with least privilege? Agentic integrations or Security Copilot agents can request broad access; confirm and insist on granular, auditable roles.
• Auditability, immutability, and chain-of-custody
  • Are immutable retention guarantees supported (WORM-style archiving) and can you validate restorations?
  • Do logs include hex-level metadata and provenance records sufficient for court-grade chain-of-custody? Vendor claims should be backed by logging artifacts and sample eDiscovery exports.
• Independent security attestations
  • Request recent penetration test summaries, SOC 2 or similar attestations, and a copy of any independent architecture review relevant to capture and archive integrity.
• Billing and metering expectations
  • If Security Copilot agents or metered compute are part of the offering, request sample invoices and run-rate estimates. Microsoft’s Security Store and Security Compute Units (SCU) model can introduce variable costs; pilot measurement is essential.

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Strengths and practical advantages​

• Niche fit for a real problem: Mobile-first capture is a known gap in many compliance programs. A specialized vendor reduces engineering burden compared to custom capture builds.
• Platform-native connectors: Direct routing into Microsoft Purview and Advanced eDiscovery reduces context loss and keeps evidence in tools legal teams already use. This reduces the friction of litigation holds and regulatory requests.
• Stacked capture reduces blind spots: Combining on-device app capture with carrier and gateway capture increases the likelihood of complete records across BYOD, device offline, or OS permission scenarios.
• Faster onboarding for Microsoft-first shops: Security Store packaging and Azure Marketplace availability accelerate guided deployments and reduce bespoke integration projects for customers entrenched in Microsoft cloud.

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Risks, unknowns, and where governance must be strongest​

• Marketing vs. implementation: Phrases like “maintains encryption in transit” or “unparalleled security” are marketing; they must be validated by architecture diagrams, key-management statements, and independent attestations.
• Agentic and automation risks: Security Copilot agents and agentic features increase automation but centralize privilege. Conservative, human-in-the-loop defaults and staged rollouts are critical; otherwise an agent misconfiguration could alter policies or leak PII at scale.
• Platform concentration and supply-chain risk: Relying on Microsoft’s Store/unified billing concentrates procurement, telemetry, and governance. That efficiency is valuable — and it also requires robust exit strategies, exportability guarantees, and clarity on subprocessors.
• Hidden run costs: Metered compute for agents, per-message carrier fees, or per-number leases for carrier capture can produce surprise costs at scale. Measure and model these during pilot runs.

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A practical pilot plan (recommended sequence)​

1. Scope and isolation
   • Create a dedicated non-production tenant or test subscription and document the risk boundaries for the pilot.
2. Contract basics and documentation review
   • Obtain the Data Processing Addendum (DPA), list of subprocessors, breach notification timeline, and sample invoices. Negotiate key custody and exit/portability terms.
3. Architecture review and permissions audit
   • Get detailed diagrams showing device → capture point → CellTrust processing → Purview/Sentinel/archiver. Validate the minimum Entra and Intune roles and whether Global Admin consent is required.
4. Report-only deployment and fidelity check
   • Enable capture in report-only mode to validate content fidelity, metadata completeness, timestamps, and correlation to Purview/Advanced eDiscovery without affecting live end-users.
5. End-to-end eDiscovery and export tests
   • Run typical legal workflows: searches, holds, exports, and redactions. Confirm that exported artifacts are complete and usable for legal processes.
6. Performance, cost, and resilience measurement
   • Measure SCU usage, carrier fees, latency, ingestion errors, and archive restore times. Test incident and rollback runbooks.
7. Independent validation and signoff
   • Obtain a recent pen test, SOC 2 report, and optionally commission a short independent red-team focused on capture, archive integrity, and key management. Legal and records teams must sign off before production rollout.

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How this fits into the wider Microsoft security marketplace strategy​

Microsoft’s Security Store and Security Copilot agent model are deliberate moves to make partner capabilities first-class, integrated pieces of enterprise security workflows — not separate, bolt-on products. The Store’s value proposition is verified integrations, guided deployment flows, and a unified purchasing surface that ties partner solutions into Defender, Sentinel, Purview, Intune, and Entra. This trend favors partners who can demonstrate tight integration and predictable operational behavior inside Microsoft’s control plane. Vendors like CellTrust, with Azure engineering and MISA membership, are natural fits for that model — but the marketplace model also raises governance and supply-chain responsibilities for buyers.

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Final assessment — practical, conditional, and vendor-agnostic​

CellTrust’s presence in Microsoft’s Security Store and its Azure Marketplace/AppSource listings make SL2 an accessible option for enterprises that need defensible capture and archiving for mobile communications. For Microsoft-centric organizations, the Store listing is a meaningful signal that reduces initial procurement friction and offers a packaged path to integration with Purview, Sentinel, and Intune.
However, the operational and legal defensibility of any compliance capture solution depends on implementation detail: key management, subprocessors, explicit permissions, audit logging, immutability of archives, and contractually backed SLAs. Those are not fully enumerated in vendor press material and should be treated as negotiation and validation checkpoints. In short: the Store listing is an invitation to pilot — not a final certification of suitability.

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Quick checklist for procurement and security teams​

• Obtain architecture diagrams, key-management statements, and DPA/subprocessor lists.
• Insist on report-only pilots and confirm eDiscovery exports work end-to-end.
• Validate permissions required by any agent or Intune integration and require least-privilege service identities.
• Request pen test results, SOC 2 or equivalent attestations, and consider third-party validation of archive immutability.
• Model expected run costs, SCU consumption, and carrier fees during pilot tests.

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CellTrust’s move into the Microsoft Security Store is a pragmatic reflection of two converging trends: the rising business need for defensible mobile communications capture in regulated sectors, and Microsoft’s push to make partner solutions first-class, easily consumable security artifacts inside its security platform. For customers, the immediate benefit is speed of discovery and the potential for repeatable, guided deployment; the long-term value will depend on disciplined pilots, contractual guarantees around cryptography and data handling, and an insistence on independent security evidence before broad enablement.

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Source: Eagle-Tribune CellTrust is a Proud Participant in the Microsoft Security Store Partner Ecosystem