CellTrust’s inclusion in Microsoft’s newly launched Security Store marks a practical milestone for organizations that need defensible capture and archiving of mobile communications, and it signals a broader shift toward marketplace‑driven security procurement for Microsoft‑centric environments. The company has published its SL2 family — including SL2 Enterprise Capture and SL2 for Microsoft Intune — into Microsoft distribution channels and is positioning those offerings as packaged, guided integrations with Microsoft security and compliance control planes.
Microsoft’s Security Store is an app‑store style marketplace for security solutions and Security Copilot agents designed to integrate directly with Defender, Sentinel, Entra, Purview, Intune and related services. The Store aims to reduce procurement friction by offering verified, guided deployment flows and unified billing for partner solutions, accelerating time‑to‑value for customers already invested in Microsoft’s security stack. Coverage of the Store’s launch highlights Microsoft’s intention to make packaged security integrations and agentic components first‑class artifacts in enterprise security operations.
CellTrust has been active in Microsoft ecosystems for several years, listing SL2 products in the Azure Marketplace and AppSource, and advertising deep ties to Microsoft Defender, Sentinel, Entra and Azure AI services. The vendor emphasizes capabilities tailored to regulated industries: app capture (SMS/text, chat, voice), carrier capture, stacked capture, moderation/gateway hold, and archiving pipelines to long‑term storage with claims of encrypted transit and links into Microsoft Purview/Advanced eDiscovery. Those product pages and announcements confirm availability in Microsoft commercial and government channels and the company’s membership in the Microsoft Intelligent Security Association (MISA).
However, the listing should be treated as a starting point for a deeper, evidence‑based evaluation. Critical security and compliance guarantees — particularly key custody, HSM usage, data residency, subprocessors and immutable archiving assurances — are not fully disclosed in press materials and must be contractually and technically validated before production enablement. Marketing statements about encryption and “unparalleled security” should be considered vendor assertions until backed by architecture diagrams and independent attestations.
Organizations that will benefit most from CellTrust’s Store‑packaged SL2 offerings are those that:
CellTrust’s move into the Microsoft Security Store is another indicator of how enterprise security procurement is evolving: pre‑packaged, platform‑native integrations and agentic components are now the primary vector for delivering security capabilities at scale. That evolution offers clear productivity and time‑to‑value gains — but it raises equal measures of governance and supply‑chain responsibility. The net benefit will go to the teams that pair marketplace convenience with rigorous, evidence‑based validation and contractual protections.
Source: StreetInsider CellTrust is a Proud Participant in the Microsoft Security Store Partner Ecosystem
Background / Overview
Microsoft’s Security Store is an app‑store style marketplace for security solutions and Security Copilot agents designed to integrate directly with Defender, Sentinel, Entra, Purview, Intune and related services. The Store aims to reduce procurement friction by offering verified, guided deployment flows and unified billing for partner solutions, accelerating time‑to‑value for customers already invested in Microsoft’s security stack. Coverage of the Store’s launch highlights Microsoft’s intention to make packaged security integrations and agentic components first‑class artifacts in enterprise security operations. CellTrust has been active in Microsoft ecosystems for several years, listing SL2 products in the Azure Marketplace and AppSource, and advertising deep ties to Microsoft Defender, Sentinel, Entra and Azure AI services. The vendor emphasizes capabilities tailored to regulated industries: app capture (SMS/text, chat, voice), carrier capture, stacked capture, moderation/gateway hold, and archiving pipelines to long‑term storage with claims of encrypted transit and links into Microsoft Purview/Advanced eDiscovery. Those product pages and announcements confirm availability in Microsoft commercial and government channels and the company’s membership in the Microsoft Intelligent Security Association (MISA).
What CellTrust Is Offering: technical summary
CellTrust’s SL2 portfolio is presented as a purpose‑built platform for capture, governance, moderation and long‑term preservation of mobile communications in regulated environments. Key capabilities the vendor highlights include:- App capture for managed applications capturing SMS/text, chat and voice sessions initiated from corporate applications or managed containers.
- Carrier Capture to ingest records or message copies directly from carriers where on‑device capture is restricted or infeasible.
- Stacked Capture that aggregates multiple capture modalities (app + carrier + gateway) to reduce blind spots and improve evidentiary completeness.
- Moderation and gateway hold allowing policy‑driven interception, human review, and approval flows for outgoing communications that require oversight.
- Archiving connectors into long‑term storage and Microsoft Purview / Advanced eDiscovery with encryption in transit claimed by the vendor.
Why this matters for Microsoft‑centric buyers
For organizations that run Defender, Sentinel, Purview, Intune and Entra as their compliance and security control plane, a Security Store listing brings three practical benefits:- Faster discovery and procurement: a packaged vendor listing reduces time spent evaluating integration effort and procurement complexity. The Store’s guided deployment flows are designed to reduce bespoke integration projects.
- Operational alignment: pre‑packaged connectors and deployment templates aim to make captured content and metadata consumable by Purview/Advanced eDiscovery and Sentinel playbooks without extensive custom work. This improves the legal defensibility of preserved communications when long retention and context are required.
- Ecosystem trust signals: MISA membership and Azure Marketplace/AppSource availability are meaningful signals to procurement teams that the vendor has invested in Microsoft interoperability. Those signals are useful when time and auditability matter.
Verification — cross‑checking vendor claims
To produce an evidence‑based view, key vendor statements were verified against independent sources and vendor documentation:- CellTrust’s availability in Microsoft distribution channels (Azure Marketplace, AppSource, Teams Store) and its SL2 product descriptions are directly published on the company website and product pages. These pages document integration points with Defender, Sentinel, Entra and Intune.
- Microsoft’s Security Store launch and positioning as a curated marketplace for security solutions and Security Copilot agents is documented in contemporaneous coverage of the Store’s release and Microsoft partner announcements. These independent reports corroborate the Store’s goals around verified integrations, guided deployments and unified billing.
- Other security vendors published similar “proud participant” announcements at the same time, confirming Microsoft’s broader partner onboarding and the Store’s role as a distribution and governance surface. This underlines that inclusion in the Store is an ecosystem practice, not unique to any single vendor.
- Exact cryptographic details (key custody, HSM usage, key rotation policies, and encryption‑at‑rest guarantees across all subprocessors) are not fully documented in consumer‑facing press material. These are contract‑level details that must be validated through architecture diagrams, a Data Processing Addendum (DPA) and independent attestations. Treat marketing language about “maintaining encryption in transit to archivers” as an implementation claim requiring confirmation.
- Granular permission and consent requirements for agentic integrations (whether Global Admin consent is needed, minimum service identities, and least‑privilege roles) are not fully spelled out in announcements and must be examined during a pilot.
Strengths: what CellTrust brings to the table
CellTrust’s SL2 positioning and Security Store listing create several practical advantages for regulated organizations:- Niche focus on mobile capture. Mobile communications are a persistent gap in many compliance programs; a specialist solution reduces engineering lift compared to building custom capture pipelines.
- Stacked capture reduces blind spots. Combining on‑device app capture with carrier and gateway capture methods increases the probability of complete records under varied device, network and BYOD scenarios. This matters when courts or regulators demand defensible chain‑of‑custody.
- Platform integration. When properly configured, SL2’s connectors to Purview and Advanced eDiscovery allow legal teams to run eDiscovery workflows in tooling they already trust. That reduces context loss and litigation friction.
- Guided deployment and marketplace billing. Security Store packaging and Azure Marketplace/AppSource availability can shorten procurement cycles and simplify licensing and entitlement management where organizations already centralize billing in Microsoft channels.
Risks, gaps, and what to validate before purchase
A careful procurement and technical validation plan should address the following categories:- Cryptography and key custody: Confirm who controls encryption keys (customer‑managed keys vs. vendor keys), whether HSMs are used, and how keys are protected during transit and at rest across CellTrust and any downstream archivers. If the vendor’s public claims are insufficient, require architectural diagrams and a written key management statement.
- Data residency and subprocessors: Document exactly where message content and metadata are stored, which subprocessors are involved (including carrier partners), and whether Azure Government or other sovereign cloud options are available for sensitive workloads. For public sector and cross‑border data, this is non‑negotiable.
- Permission model and least privilege: Verify the exact Azure/Entra roles and consents required by any agent, connector, or managed identity. Confirm that installers do not require Global Admin consent unnecessarily and that the solution can run under a least‑privilege service principal.
- Agent governance and human‑in‑the‑loop defaults: If the solution includes agentic features or automated remediation, require report‑only and staged deployment modes initially. Maintain human approvals for high‑impact policy changes until trust is established.
- Billing transparency and metered costs: Agent workloads and Security Copilot compute can introduce metered charges. Ask for sample invoices, run‑rate scenarios, and expected Security Compute Unit (SCU) consumption for the intended scale. Negotiate caps or review triggers for unexpected cost growth.
- Independent verification: Obtain recent penetration test results, SOC 2 or equivalent attestations, and consider contracting an independent red team focused on capture and archive integrity. Marketing claims should be substantiated with third‑party evidence.
Practical pilot and rollout plan (recommended sequence)
- Scope and isolate: create a dedicated test tenant or non‑production subscription to avoid contaminating production telemetry.
- Review contracts: secure the Data Processing Addendum (DPA), subprocessors list, breach notification SLAs, and sample invoices. Clarify whether billing will flow through Azure Marketplace or be invoiced directly by the vendor.
- Install in report‑only mode: validate capture fidelity, correlation to Purview records, timestamp consistency and metadata completeness without changing end‑user behavior.
- End‑to‑end eDiscovery test: route captured content into Purview/Advanced eDiscovery and perform preservation, search, export and redaction workflows; confirm legal hold behavior.
- Permission audit: confirm the minimum set of permissions required and use a dedicated least‑privilege service principal. Validate whether any activities require Global Admin consent.
- Security validation: review penetration test reports and SOC 2 attestations; consider an independent technical audit of cryptographic controls and archive immutability.
- Cost measurement: simulate agent workloads and SCU consumption to forecast monthly costs; negotiate cost controls if necessary.
- Gradual rollout: expand scope after satisfying legal, technical and operational checklists; require human approval gates for any automated remediation.
Operational and governance considerations specific to Windows and Intune customers
- Use Microsoft Intune as the device management anchor for App Capture deployments to enforce enterprise app policies, conditional access and PIN/SAML controls. The SL2 for Intune packaging is designed to support managed app policies and help contain data leakage.
- Route captured content into Microsoft Purview for retention labeling, records management and Advanced eDiscovery integration. Doing so centralizes audit trails in the same legal workflows compliance teams already use.
- Integrate Sentinel playbooks to generate alerts for capture failures, ingestion anomalies, or unusual archive egress. This ensures SOC and records teams are alerted to events that might affect evidence integrity.
Commercial negotiation points and contractual redlines
When negotiating terms with CellTrust (or any capture vendor published through the Security Store), procurement and legal teams should insist on:- Explicit Data Processing Addendum (DPA) specifying subprocessors, geographic locations, retention, and breach notification timelines.
- Key management contract language clarifying who holds/control keys, HSM use, and exportable key options.
- SLA and forensic support for number provisioning (if carrier capture is used), message delivery, evidence preservation and incident response with measurable MTTR commitments.
- Audit and attestations clause requiring timely delivery of penetration test summaries and SOC 2 / ISO 27001 reports covering production controls.
- Exit and portability terms that ensure full exportability of archived content in a usable format and clear processes for deletion and handover at contract termination.
Final assessment — balancing opportunity and caution
CellTrust’s presence in Microsoft’s Security Store and its prior availability via Azure Marketplace, AppSource and Teams Store make it an accessible, platform‑aligned option for enterprises that must capture and preserve mobile communications. For regulated buyers, the packaged integrations into Intune, Purview and Sentinel are meaningful operational enablers that can shorten procurement and deployment cycles.However, the listing should be treated as a starting point for a deeper, evidence‑based evaluation. Critical security and compliance guarantees — particularly key custody, HSM usage, data residency, subprocessors and immutable archiving assurances — are not fully disclosed in press materials and must be contractually and technically validated before production enablement. Marketing statements about encryption and “unparalleled security” should be considered vendor assertions until backed by architecture diagrams and independent attestations.
Organizations that will benefit most from CellTrust’s Store‑packaged SL2 offerings are those that:
- are already deeply invested in Microsoft security and compliance tooling (Defender, Sentinel, Purview, Intune, Entra), and
- operate under strict recordkeeping requirements where mobile communications are material to regulatory or litigation risk, and
- commit to disciplined pilots, permission audits, and contractual safeguards before broad rollout.
CellTrust’s move into the Microsoft Security Store is another indicator of how enterprise security procurement is evolving: pre‑packaged, platform‑native integrations and agentic components are now the primary vector for delivering security capabilities at scale. That evolution offers clear productivity and time‑to‑value gains — but it raises equal measures of governance and supply‑chain responsibility. The net benefit will go to the teams that pair marketplace convenience with rigorous, evidence‑based validation and contractual protections.
Source: StreetInsider CellTrust is a Proud Participant in the Microsoft Security Store Partner Ecosystem
