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› surveillance & data infrastructure
Stop the attack before it hits the inbox
Over 90% of breaches start with an email. We deploy and manage AI-driven email protection that blocks phishing, business-email-compromise and malicious links — connected to Microsoft 365 or Google in minutes.
inbox · real-time protection
Accounts · Acme Ltd
March invoice attached
SPF ✓ DKIM ✓ · trusted sender
Microsoft 365
Your weekly digest
verified
CEO (display name)
Quick favour — gift cards
impersonation · blocked
90%+
of attacks start with email
API
no gateways, no MX changes
M365 · Google
protected in minutes
24/7
monitored by our SOC
Email Security
Speak to a security specialist
Free assessment · no obligation · 24/7 UK SOC
› one click is all it takes
Native filtering isn't enough anymore
Modern phishing and CEO-fraud emails are crafted to slip past standard spam filters and fool your staff. We add an AI layer on top of Microsoft 365 or Google that reads intent, not just keywords — catching the targeted attacks built to get someone to click, pay or share.
- AI anti-phishing, BEC and impersonation detection
- Links rewritten and attachments sandboxed
- Staff training and phishing simulations included
from: [email protected]
subject: Action required: verify your account
Look-alike domain
0ffice-365.com ≠ office365.com
Credential-harvest link
rewritten & blocked at click
Failed authentication
SPF ✗ · DKIM ✗ · DMARC fail
› what's included
Layered email defence, fully managed
AI protection, link and attachment security, BEC detection and staff training — deployed and monitored for you by CLI Secure.
Anti-phishing
AI inspects every message for phishing, spoofing and social-engineering — before it reaches the inbox.
Malicious link protection
URLs are scanned and rewritten, so a click on a weaponised link is stopped at open time.
Attachment sandboxing
Suspicious attachments are detonated safely and blocked before they land on a device.
BEC & impersonation
Detects CEO fraud, invoice scams and display-name spoofing that slip past basic filters.
Identity-aware
Correlates email threats with account activity to catch takeovers, not just bad mail.
Spam & graymail control
Cuts the noise so genuine business email lands and the junk doesn't.
Awareness & simulations
Turn staff into a human firewall with bite-sized training and phishing simulations.
Full visibility
A single dashboard of quarantined threats, targeted users and campaign trends.
Compliance evidence
Email controls mapped to Cyber Essentials, ISO 27001 and cyber-insurance needs.
› how we deliver
Connect, baseline, protect, monitor
Connect
We connect your inbox protection to Microsoft 365 or Google via API — no MX record changes, no downtime.
Baseline
AI learns your senders, domains and communication patterns in hours.
Protect
Phishing, BEC, malicious links and attachments are blocked automatically.
Monitor
Our SOC reviews threats, tunes policy and reports on posture 24/7.
› free assessment
Could a phishing email get through today?
Book a no-obligation email-security review. We'll check your Microsoft 365 or Google configuration, spot the gaps, and show you how managed protection closes them.
- 30-minute call with a security engineer
- A review of your current email defences
- A clear protection plan & quote, no pressure
Why run Email Security with CLI Secure
Close the #1 way in
Email is how most breaches start — we shut that door with layered AI defence.
Fully managed
We deploy the platform, tune policies and respond to threats so you don't have to.
Live in minutes
API-based onboarding means protection without a painful migration.
Insurance ready
A live posture score mapped to insurer and compliance thresholds.
› faq
Email security, answered
Enterprise-grade email security, deployed and managed by CLI Secure.
› let's talk
Ready to hand off the IT headaches?
Leave your details and a London-based engineer will call you back — usually within one business hour. No sales scripts, no obligation.
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