Kaska Email Security

Protect your mailboxes without changing mail flow.

API-First Email Security Platform · AI-Powered Email Threat Detection & Response. Protection for Microsoft 365 and Google Workspace against phishing, BEC, impersonation and email-borne threats, with no MX change.

API-firstNo MX changePost-deliveryMicrosoft 365 · Google Workspace
The problem

A dangerous email does not always look dangerous.

Modern email attacks increasingly carry no malware and no obviously bad link. They exploit trust: a familiar name, an existing thread, a routine payment request from a supplier you already pay.

What modern email attacks exploit
Trusted identities

01

Business relationships

02

Conversation context

03

Executive impersonation

04

Vendor relationships

05

Payment workflows

06

Compromised accounts

07

How it works

From connection to proof.

01Connect

Microsoft 365 or Google Workspace, through their APIs.

02Understand

Authentication, sender and recipient, content, URLs, attachments and relationships.

03Detect

Layered analysis producing a verdict, a risk level and its evidence.

04Investigate

Why it was flagged, related messages and campaigns, in one case.

05Respond

Detect-only, policy-controlled quarantine, analyst allow / block, controlled clawback.

06Report / Prove

Audit trail, evidence, security reporting and integration-ready event output.

Threat coverage

Built for the threats that reach the inbox.

Phishing

Credential theft · Malicious URLs · QR / quishing

Business Email Compromise

Vendor impersonation · Invoice fraud · Payment redirection · Bank-account change requests · First-time payment requests · Reply-chain attacks · Thread hijacking

Identity & Impersonation

Executive impersonation · Lookalike domains · Sender spoofing · Compromised senders

Campaigns & Context

Campaign clustering · Relationship intelligence · IOC / reputation signals · AI-assisted analysis

Business email compromise & payment fraud

The costliest emails ask politely.

BEC rarely looks like an attack. It looks like a supplier with new bank details, or a reply inside an invoice thread your team has worked on for weeks.

Kaska Email Security looks at who is asking, who they normally talk to and what they are asking for, combining relationships, impersonation signals, authentication, intent and payment-risk indicators into one explained verdict.

FromAccounts · Meridian Supplies <accounts@meridian-supp1ies.com>
ToAccounts Payable
SubjectRE: Invoice MS-4471 — updated bank details
Hi, please note our bank account has changed. Kindly process invoice MS-4471 to the new account below before Friday's payment run so there is no delay in supply.
Signals behind the verdict
Lookalike sender domain
Bank-account change request
First-time payment destination
Reply inside an existing invoice thread
Deadline pressure
Verdict · likely BEC · high riskEvidence retained

Illustrative example · fictional organisation and message.

How Kaska detects

Layered analysis. Explained verdicts.

Every verdict keeps the signals that produced it, so an analyst can see why, not just what.

01
Metadataheaders, routing and sending infrastructure
02
AuthenticationSPF, DKIM and DMARC results
03
Reputationsender, domain, URL and IOC signals
04
Content / Intentrequests, urgency and payment language
05
URLlinks, redirects and QR codes
06
Attachmentfile type and attachment analysis
07
Relationshipsender–recipient history and business context
08
AI-assisted analysisof context and intent
VerdictRiskEvidence
Investigation & response

Controlled response, with the evidence attached.

Start in detect-only mode, then enable policy-controlled actions. Every action is on the audit trail.

1Detect

Layered analysis produces a verdict, risk and evidence.

2Investigate

Signals, related messages and campaign context in one case.

3Evidence

The rationale behind the verdict is preserved for review.

4Quarantine

Only where policy allows, or on analyst decision.

5Verify

Confirm the campaign scope before acting across mailboxes.

6Release / Remediate

Release false positives, or remediate with controlled clawback.

API-first

Alongside your email platform. Not in front of it.

Kaska Email Security connects to Microsoft 365 or Google Workspace through their APIs. Mail flow, MX records and existing email controls stay exactly as they are. It is designed to augment, not replace.

No MX change

Mail flow and MX records stay as they are.

Post-delivery

Analysis and response after messages are delivered.

Governed actions

Read for analysis; response actions only by policy or analyst decision.

AI assists with

Analysis · Triage · Context · Correlation · Threat intelligence · Impact assessment · Timeline generation

Security actions stay governed by

Evidence · Explicit policy · Safety controls · Human approval where required · Auditability

Who it is for

For organisations where one email can move money.

Enterprise

Organisations on Microsoft 365 or Google Workspace that want protection beyond native email controls.

BFSI

Payment workflows, vendor relationships and executive impersonation are prime targets for BEC.

IT / ITES

Large, distributed mailboxes and client relationships that attackers try to exploit.

Pharma

Supplier, partner and research communications that need closer scrutiny.

Manufacturing

Vendor invoices and procurement workflows exposed to payment fraud.

Government / PSU

Official communications targeted by impersonation and phishing, subject to your hosting requirements.

Deployment

Cloud-delivered. API-connected.

Cloud / SaaS

Delivered as a cloud service.

Microsoft Azure

Designed for India-region hosting (Azure Central India).

API-first

Connects through Microsoft 365 / Google Workspace APIs.

Product status. Kaska Email Security is being prepared for controlled customer launch and design-partner validation. Microsoft 365 is the primary integration for the first release, with Google Workspace following the same API-first approach. Capability availability depends on the release and integration status we confirm with you during evaluation.

Get started

See what Kaska can find in your email.

A focused demo of Kaska Email Security for Microsoft 365 or Google Workspace.