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Sentaro: Collaboration & Productivity software

Sentaro is an artificial intelligence email security platform that monitors message activity, external domains, and application connections to stop cyber threats.

What is Sentaro?

Sentaro is a cloud-native security platform engineered to protect tenant environments within Microsoft 365 and Google Workspace. Operating without endpoint software agents or MX record modifications, the platform connects directly using administrative APIs to analyze internal, external, and historical tenant activity. Sentaro functions as an automated digital immune system that continuously evaluates risks and handles threats inside the organization's tenant, ensuring employees are not required to act as the primary line of security defense.

The foundation of the platform is Vord, a proprietary detection engine that combines multiple analytical methods into a unified processing mesh. The system deconstructs every monitored tenant event into anywhere from tens to well over one hundred proprietary signals. These signals are dispatched to specialized expert algorithms and larger reasoning models to perform contextual evaluation. Vord processes technical indicators ranging from Levenshtein string matching to machine learning models, delivering a single definitive verdict along with detailed reasoning before security threats cause harm.

Sentaro organizes its monitoring capabilities across four distinct security vectors: message, app, identity, and behavior. The message vector assesses the intent of correspondence and relationship patterns to detect social engineering attempts that lack malicious links or file attachments. The app vector catalogs OAuth grants, unapproved software, and shadow artificial intelligence tools to maintain a real-time inventory of tenant access. The identity vector tracks brand exposure, credential breach dumps, and lookalike domain registrations outside the tenant. The behavioral vector builds individual baselines for each user to identify anomalous activity such as off-hours logins or unauthorized forwarding rules.

Designed for firms subject to European legal and regulatory standards, Sentaro hosts and operates its entire engine on infrastructure located within Sweden. The platform's proprietary models, algorithmic weights, and data inference processes remain strictly governed under European Union jurisdiction. This sovereign design architecture supports regulated mid-market organizations and enterprises in documenting incident post-mortems and satisfying compliance obligations outlined by the Digital Operational Resilience Act, the Network and Information Security Directive, and the Artificial Intelligence Act.

Administrative setup takes four minutes over cloud APIs, and the engine generates historical visibility across workspace data within 15 minutes. Sentaro enforces administrative policies through automated containment and remediation actions. The platform labels suspicious correspondence inside user mailboxes, revokes risky OAuth application permissions, revokes unauthorized sessions, deletes malicious mailbox forwarding rules, and allows administrators to remove matching threat messages across every tenant mailbox in a single step.

Main category
Collaboration & Productivity
Also listed in
AI Tools
Official website
sentaro.com
Status
Not yet published

Sentaro use cases

Stopping Business Email Compromise Attacks

Sentaro defends organizations against business email compromise, executive impersonation, and payroll diversion schemes that lack file attachments or malicious links. By building a live communication graph that analyzes how payments are discussed, who instructs whom, and which devices or display names belong to legitimate relationships, the engine evaluates the underlying intent of every message. When an impersonated executive or fraudulent instruction requests an urgent financial transfer, Sentaro identifies the behavioral deviation and removes or labels the message before funds are transferred.

Preventing Vendor and Invoice Fraud

Attackers frequently compromise legitimate vendor mailboxes to inject fraudulent bank details into existing correspondence threads. Because these messages originate from genuine email accounts and pass standard technical authentication checks, legacy security filters fail to detect them. Sentaro evaluates historical communication patterns, identifying shifts in tone, unexpected payment detail changes, and unusual timing within established vendor relationships. When a compromised vendor account requests payout updates, the platform flags the behavioral disruption and alerts security teams to the potential risk.

Monitoring Domain Lookalikes and Pretexting

Sentaro tracks domain registration activity across the web to identify lookalike domains targeted at an organization's brand or supply chain. By spotting typosquatted and lookalike registrations before they are ever used in active email campaigns, the system flags incoming pretexts—such as short introductory messages sent without attachments or links—as threats immediately upon arrival. This proactive identity layer neutralizes early social engineering efforts before attackers can build trust or pivot communication off monitored channels.

Discovering Shadow IT and Shadow AI Usage

Employees frequently sign up for unapproved cloud software, artificial intelligence chatbots, meeting notetakers, and file-sharing applications using corporate email addresses. Sentaro continuously monitors email receipt trails, registration links, and welcome messages across tenant mailboxes to maintain a real-time inventory of all active SaaS applications. This discovery operates across all networks and personal devices without requiring network proxies or expense tracking, surfacing both current tools and historical accounts created prior to platform installation.

Managing OAuth Grants and Consent Phishing

Third-party applications connecting to Microsoft 365 or Google Workspace through OAuth consents can retain persistent access to corporate mailboxes, files, and calendars. Sentaro identifies granted application scopes across individual accounts, exposing unverified publishers and overly permissive integrations. Additionally, the engine automatically blocks consent phishing attacks where malicious applications disguise themselves as legitimate productivity or artificial intelligence tools. Administrators can review scope-level risks and revoke application access grants directly through the platform.

Detecting Account Takeover and Unauthorized Access

When legitimate user credentials are compromised, traditional security tools struggle to spot unauthorized access. Sentaro monitors user activities against personalized behavioral baselines rather than static global rules. The engine evaluates login sessions from unrecognized devices, off-hours access, and sudden changes in data movement. If an attacker accesses a mailbox and creates an external forwarding rule to exfiltrate correspondence, Sentaro scores the rule against the owner's baseline, terminates the unauthorized session, and revokes the rule automatically.

Documenting Incidents for DORA and NIS2 Compliance

Regulated organizations must provide objective evidence and strict documentation following security incidents. Every verdict issued by Sentaro includes detailed contextual reasoning explaining what baseline deviated, which technical indicators triggered the alert, and the confidence level of the decision. This audit trail provides incident documentation required for internal post-mortems and fulfills the time-sensitive reporting clocks mandated under European regulations such as the Digital Operational Resilience Act and the Network and Information Security Directive.

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Sentaro FAQs

How does Sentaro deploy within an organization?

Sentaro connects directly to Microsoft 365 or Google Workspace via administrative APIs in four minutes. The deployment requires no endpoint software agents, no email routing changes, and no DNS or MX record modifications. Once connected, the platform scans historical workspace data and provides complete visibility across tenant messages, OAuth grants, and user activities within 15 minutes.

Does Sentaro require changing MX records or installing agents?

No. Sentaro operates entirely via cloud-level administrative application programming interfaces inside the tenant. Because it does not rely on email gateway rerouting or MX record adjustments, mail delivery flows remain unaltered. Additionally, the system operates agentlessly across all user devices, inspecting mailbox signals, login sessions, and app grants without needing endpoint installations.

How does Sentaro detect BEC without links or attachments?

Sentaro uses its message vector to analyze communication intent and interpersonal relationships rather than scanning for malicious file payloads or links. The engine evaluates sender display names, domain variations, historical payment discussion patterns, and messaging tone. By comparing incoming instructions against established baseline relationship graphs, Sentaro flags social engineering and impersonation attempts even when correspondence contains only text.

Where is Sentaro hosted and how does it ensure EU sovereignty?

Sentaro hosts and operates its proprietary engine, Vord, on infrastructure located in Sweden. All algorithm weights, machine learning models, and data processing tasks remain governed strictly under European Union law. This sovereign architecture enables European businesses to comply with regulatory frameworks such as DORA, NIS2, and the AI Act without routing security decisions through external jurisdictions.

Can Sentaro discover shadow IT and artificial intelligence tools?

Yes. Sentaro monitors signup verification emails, welcome messages, and receipts across tenant mailboxes to detect unsanctioned cloud software and AI tools, including chatbots and meeting notetakers. This email-layer discovery works across all networks and devices without needing firewall proxies or expense reports, and surfaces tools adopted prior to Sentaro's deployment.

How does Sentaro handle compromised user accounts?

When an attacker gains access to a legitimate user account, Sentaro evaluates user actions against individual behavioral baselines. If an anomalous event occurs—such as a suspicious login session or the creation of an external mailbox forwarding rule during off-hours—the engine flags the behavior, terminates the unauthorized session, and revokes the forwarding rule automatically.

Does Sentaro replace Microsoft Defender or Google's native filters?

No. Sentaro is designed to run alongside native filtering solutions in Microsoft Defender and Google Workspace. While native filters provide a baseline against bulk phishing and known malicious payloads, Sentaro adds a behavioral layer to catch targeted, novel, and payload-free attacks. It also inspects internal emails where threats spread after account compromise.

What information is provided when a threat is flagged?

Every verdict issued by Sentaro includes detailed contextual reasoning explaining why an action was taken. The platform displays the specific baseline that was violated, technical indicators, and a confidence score. Administrators can review this reasoning to audit automated decisions or export the evidence to fulfill regulatory incident documentation requirements under DORA and NIS2.

Is DMARC still necessary if an organization uses Sentaro?

Yes. DMARC and Sentaro perform complementary security functions. DMARC prevents exact forgery of an organization's own domain and protects brand reputation externally. Sentaro addresses vectors DMARC cannot block, including lookalike domain registrations, display-name spoofing, compromised real vendor accounts, and internal threat propagation following account takeover.

How is shadow IT discovery priced within Sentaro?

Shadow IT discovery is an integrated core component of the platform rather than an add-on module. Every Sentaro plan includes shadow IT and shadow AI discovery features by default. A free plan is available for one account, while full subscription details are available upon request from the vendor.

Who uses Sentaro?

Sentaro is designed for organizations seeking sovereign threat defense within Microsoft 365 and Google Workspace environments, with a specific focus on European firms, regulated mid-market enterprises, and Nordic SMEs. The platform serves security administrators, IT leaders, and lean security teams that require automated threat decision-making without adding management overhead. It is structured for companies governed by European boards and regulators subject to legislative mandates such as DORA, NIS2, and the AI Act.

  • Regulated European mid-market organizations
  • Nordic small and medium enterprises
  • Firms subject to DORA, NIS2, and EU AI Act regulations
  • Security administrators managing Microsoft 365 and Google Workspace
  • Lean IT and security teams requiring automated remediation

Sentaro pros and cons

Until real users review Sentaro, this tab shows what the vendor highlights and the points worth checking — never invented opinions.

What Sentaro highlights

  • Fast four-minute API setup for Google Workspace and Microsoft 365 without endpoint agents or MX changes
  • Fully sovereign EU engine hosted in Sweden operating under European Union jurisdiction
  • Multi-vector detection combining message intent, OAuth scope analysis, domain tracking, and user baselines
  • Automatic remediation including grant revocation, session termination, and rule deletion
  • Shadow IT and AI discovery included across all platform tiers

Points to check before choosing

  • Public documentation is currently being written, with complete docs accessible primarily inside the product
  • SOC 2 and ISO 27001 certifications are currently listed as in progress
  • Direct API integration is limited strictly to Microsoft 365 and Google Workspace environments
  • The vendor's website does not disclose specific customer support channels or service level agreements

Sentaro features

Vord Reasoning Engine

Vord is Sentaro's proprietary detection engine that processes tenant events through a mesh of analytical tools. It deconstructs incoming signals into tens to over one hundred proprietary indicators, routing them to specialized expert algorithms and larger reasoning models. By combining techniques from Levenshtein distance matching to machine learning models, Vord generates a single verdict with contextual reasoning before security incidents cause damage.

Message Intent Analysis

The message vector analyzes the underlying intent and relationship structure of incoming and internal emails. Rather than searching solely for known malicious links or file attachments, the engine evaluates language patterns, payment requests, executive instructions, and sender authenticity. Messages are judged based on their fit within established communication graphs, allowing Sentaro to identify payload-free social engineering and business email compromise.

OAuth Scope Governance

Sentaro provides visibility into third-party OAuth application grants across Microsoft 365 and Google Workspace. The platform catalogs every application connected to user accounts, identifying unverified publishers, scope-level permission risks, and persistent access to emails, files, and calendars. Administrators can review scope-level risks across accounts and revoke application access directly through administrative APIs.

Domain Exposure Monitoring

The identity vector monitors domain registrations across the web to identify typosquatted and lookalike domains targeting an organization's brand or supply chain. By detecting lookalike domains shortly after registration, Sentaro flags incoming emails or OAuth applications linked to these domains before attackers can launch active phishing or business email compromise campaigns.

Behavioral User Baselining

Sentaro builds individual activity baselines for every user within a tenant rather than relying on global threshold rules. The behavioral vector evaluates login timing, device usage, session context, data movement, and mailbox configurations. Anomalous actions—such as a forwarding rule created during off-hours from an unrecognized session—are scored against the specific user's baseline for automatic mitigation.

API-Based Deployment

Sentaro integrates directly into Google Workspace and Microsoft 365 using administrative application programming interfaces. Deployment completes in four minutes without requiring endpoint agents, rules maintenance, or domain name system and MX record modifications. The system scans historical tenant data to provide threat and asset visibility within 15 minutes of connection.

Automated Incident Remediation

When threats are detected, Sentaro executes automatic remediation actions defined by administrative policies. The engine can label messages directly within user mailboxes, quarantine suspicious correspondence, revoke third-party app access, end unauthorized user sessions, and remove malicious forwarding rules. Administrators can also purge matching threat messages across all tenant mailboxes in a single action.

SaaS and Shadow AI Discovery

Sentaro inspects mailbox signup trails, verification links, and receipt data to catalog all cloud applications and artificial intelligence tools used across an organization. The platform identifies chatbots, meeting notetakers, and file-sharing utilities adopted on any network or device, including abandoned accounts and tools adopted long before Sentaro's deployment.

Consent Phishing Defense

Attackers often deploy malicious cloud applications disguised as popular software or AI assistants to trick users into granting tenant access. Sentaro evaluates application registration details and publisher verification statuses alongside message analysis. When a consent request from an unverified publisher or lookalike domain is detected, the platform revokes the grant automatically.

Sovereign EU Infrastructure

Designed for European organizations, Sentaro hosts and executes its detection engine on physical infrastructure located in Sweden. All machine learning models, weights, and inference processes operate under European Union jurisdiction. This sovereign design helps regulated businesses adhere to DORA, NIS2, and AI Act requirements regarding data control and jurisdiction.

Verdict Auditing and Explanations

Every decision generated by the platform includes explicit contextual reasoning detailing why an event was labeled as a threat. Administrators can review the specific baseline deviations, confidence scores, and technical indicators behind each verdict. This auditability helps security teams verify automated decisions and provides documentation for regulatory reporting.

Historical Tenant Analysis

Upon initial connection via cloud APIs, Sentaro evaluates existing workspace data to identify hidden historical vulnerabilities. The system surfaces historic OAuth grants, lingering shadow IT accounts, and internal mailbox threats that spread prior to platform deployment, establishing an immediate historical baseline within 15 minutes of connection.

Sentaro pricing

We don't publish prices: they change often and differ by country. Check current plans on Sentaro's own pricing page.

Sentaro provides a free tier for one account. Shadow IT discovery capabilities are included as a standard feature across all platform plans rather than as a separate module. Sentaro's website does not state specific plan fees, tier structures, or custom quote details.

Free plan
Yes
Free trial
Not stated on the site

See Sentaro pricing

Sentaro integrations

Sentaro integrates directly with cloud workspace environments at the API level using administrative SDKs. It connects natively to Google Workspace and Microsoft 365 without requiring MX record changes or endpoint agent installations. The platform also analyzes interactions and OAuth grants associated with third-party software, including file-sharing applications, AI chatbots, and meeting assistants. It explicitly monitors external platforms like LinkedIn to track communication vectors and consent requests that originate outside corporate mailboxes.

  • Google Workspace
  • Microsoft 365
  • LinkedIn

Sentaro support

Sentaro provides administrative documentation detailing setup procedures, API scope permissions, policy mapping, vector coverage, and security data handling practices. Full product documentation is accessible directly inside the product interface. For organizations undergoing compliance or security evaluations, Sentaro offers permission and security section documentation upfront, as well as an evidence pack covering SOC 2 and ISO 27001 readiness. Prospective buyers can also request a 30-minute live traffic walkthrough. Sentaro's website does not state options for telephone, live chat, or ticketing support.

  • In-product documentation
  • Live traffic walkthrough
  • Security review evidence pack

Sentaro reviews

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This page was written with AI from 7 pages of sentaro.com's own website (read on Sep 16, 2026) and checked automatically: no copied wording, no prices, and no figure that isn't on the vendor's site. Nobody on our team has tested Sentaro.

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