M ManySignal

SaaS Attack Surface Defense

You have more OAuth apps than you think. Most are high-risk.

The average enterprise has 254 OAuth apps with write access to corporate data. ManySignal discovers all of them via your identity provider, scores each for risk, and detects account takeover and excessive-permission abuse — without agents in every SaaS tool.

254

average OAuth apps per enterprise (with write access)

38%

of those apps have admin-level permissions

< 15min

to full SaaS inventory from IdP connection

SaaS risk surface at a glance

What ManySignal shows you immediately after connecting your IdP.

App Scope Users granted Verified publisher Risk score
Unnamed Chrome Extension Mail.ReadWrite, Files.ReadWrite.All 342 users No 94 — CRITICAL
Productivity AI Widget User.Read, Mail.Send, Calendars.ReadWrite 156 users No 78 — HIGH
Project Mgmt Connector Files.Read, Tasks.ReadWrite 89 users Yes 31 — LOW
Legacy CRM Integration Contacts.ReadWrite, Mail.ReadWrite 12 users No 67 — MEDIUM
Slack / Microsoft Teams ChannelMessage.Read, Files.Read 1,240 users Yes 18 — LOW

SaaS defense outcomes

Full OAuth app inventory in 15 minutes

Connect your IdP and see every app with delegated access — including ones your team doesn't know about.

Risk scoring on every app and permission

Each app scored by scope, publisher trust, user count, and permission change history. No manual review required.

Account takeover detection without SaaS agents

Login anomalies in the IdP fire detections with SaaS app context — no per-app integration needed.

One-click OAuth revocation with approval gate

High-risk apps can be revoked with an approval-gated action directly from the finding case.

Permission scope change alerting

When an app requests new permissions beyond its original scope, a finding fires immediately.

Continuous monitoring, not a point-in-time scan

SaaS app inventory is refreshed every authentication cycle. New apps appear in the queue within minutes.

SaaS attack surface — common questions

How does ManySignal discover OAuth apps without agents installed in every SaaS tool?

ManySignal connects to your identity provider (Okta, Entra ID, Google Workspace) and uses the OAuth app consent records stored there to enumerate all third-party apps with delegated access to your corporate identities. No agents are required in the SaaS apps themselves.

What counts as a 'high-risk' OAuth app?

ManySignal scores OAuth apps on: scope of permissions (read-only vs. write vs. admin), the number of users who have granted consent, whether the app publisher is verified, the app's age, and whether the permission scope has changed since initial approval. Apps above the risk threshold appear in the findings queue with evidence.

Can ManySignal revoke OAuth access automatically?

Yes. For apps classified as high-risk and approved for autonomous response, ManySignal can revoke the OAuth token and notify the user. For apps requiring approval, the analyst receives a case with revocation as a one-click approved action.

How does account takeover detection work in SaaS applications?

ManySignal correlates login events from your IdP with SaaS activity logs (when available via API) to detect impossible travel, new device logins, and unusual access patterns. For SaaS tools without direct log access, login anomalies in the IdP still generate findings with the SaaS app context attached.

We have 200+ SaaS applications. Can ManySignal handle that scale?

Yes. Large enterprises typically have 150–400 distinct OAuth apps with delegated access. ManySignal processes all of them in the initial discovery scan and maintains an updated inventory with each authentication cycle. The risk scoring engine handles environments with thousands of app-user permission pairs.

Does ManySignal detect data exfiltration through SaaS tools like Google Drive or Dropbox?

Yes. ManySignal monitors SaaS activity logs (Google Workspace audit logs, Microsoft 365 compliance logs, Dropbox Business events) for large bulk download events, mass file sharing to external domains, and unusual sharing permission changes. These events are correlated with the user's entity history — a bulk download by a departing employee in their final week generates a much higher risk signal than the same download by their manager.

How does ManySignal handle shadow SaaS — applications connected to corporate identities without IT approval?

ManySignal's initial discovery scan surfaces all OAuth-connected apps using corporate identity credentials, including unapproved apps that employees have authorized individually. The shadow SaaS inventory shows which unapproved apps have broad permission scopes (access to email, calendar, file storage), enabling the security team to revoke unauthorized grants or escalate for policy decisions. Continuous monitoring catches new shadow app connections as they occur.

Can ManySignal monitor Microsoft Teams and Slack for security-relevant activity?

Yes. ManySignal ingests Microsoft Teams audit logs and Slack Enterprise Grid audit logs. Monitored events include: sensitive file sharing in public channels, external user additions to internal workspaces, webhook creation (a common data exfiltration technique), and bot application installations. Team and workspace member additions from unusual IP addresses or at unusual hours are correlated with identity context.

What is the implementation timeline for SaaS security monitoring?

Initial SaaS discovery and OAuth inventory are completed within 24–48 hours of connecting the identity provider. Direct SaaS log integrations (Microsoft 365, Google Workspace, Salesforce) take 2–4 hours each to configure. Full detection coverage — behavioral baselines established, detection rules active — is typically complete within 2 weeks of initial connector setup.

See your full SaaS app inventory in 15 minutes

Connect your IdP read-only. We'll generate a complete OAuth app risk inventory and highlight your highest-risk apps in the first session.