Email Security. Shut the door attackers knock on first.
Most breaches still start with an email: a phishing link, a fake invoice, a convincing request from the boss. We layer defenses across the inbox so the obvious threats never arrive and the clever ones are caught before anyone clicks.
Email is the one door you cannot close, because the business depends on it staying open. That is exactly why attackers love it: they only need one person, one moment of trust. The inbox is the most human part of your attack surface.
We secure email in depth, combining authentication, content inspection, AI-driven detection of social engineering, and fast response to what slips through. Phishing, business email compromise, and malware are filtered before they land, suspicious messages are flagged, and your people get the training and the easy reporting that turns them into a sensor rather than a soft target.
Every message runs the gauntlet
A threatening email has to get past every layer. Most never make it through the first few.
Authentication
SPF, DKIM, DMARC
Content & URL filtering
Malware, links, attachments
AI social-engineering detection
BEC, impersonation, tone
People as a sensor
Training, one-click reporting
One hijacked thread, five tells
Business email compromise carries no malware. It carries trust. Here is a vendor thread, hijacked between March and April, with everything that gave it away.
Hi Fatima, confirming the Q2 schedule we discussed: invoices land on the 5th of each month, net 30 as usual. Anything you need from our side, just reply here.
Hi Fatima, quick update before the May run: we have changed banks and the old account is now closed. Please use the details below for invoice MS-2204 and keep this between us until the switch completes on our side.4
IBAN GB29 ···· ···· 8861 · Meridian Supplies Ltd.
The lookalike domain. meridian-supplies.co, one letter short of the real one, registered three days before this message.
The quiet Reply-To swap. Replies leave the thread and go somewhere the real vendor will never see.
The stolen signature. Copied from the genuine March message, pixel for pixel. Familiarity is the payload.
The BEC fingerprint. A bank-detail change, plus urgency, plus secrecy. Three phrases that almost never travel together honestly.
The headers do not lie. The message never touched the real vendor's mail servers, and the sending infrastructure is days old.
Filtered, flagged, and fast to respond
Phishing & BEC defense
Layered filtering and AI detection that catches both bulk phishing and targeted business email compromise.
Post-delivery remediation
A bad message that slips through is pulled from every inbox automatically once it is identified.
Awareness & simulation
Training and phishing simulations that build a workforce which spots and reports the lure.
Where email security sits in VIGILE
Guard the inbox, Implement the response
Email Security is the Guard and Implement motions at the inbox. We filter what arrives and pull what slips through, with reported messages feeding the iTDC so a phishing wave is seen and stopped across the business.
See Managed Detection and Response ›Top 10 questions, frequently asked
Native filtering catches the obvious bulk spam and known malware, and attackers design around exactly that. The threats that cause real damage, targeted business email compromise and convincing impersonation, are built to slip past default filters. We add the layers and the AI detection tuned for those, plus fast remediation when something does get through.
BEC is a scam with no malware to detect, just a convincing message: a fake request from an executive, a supplier asking you to change their bank details, an urgent invoice. Because there is no payload, it defeats traditional filters. We catch it with detection that reads context, tone, and intent, and with people trained to pause on the request that feels off.
It is removed from every inbox it reached, automatically, the moment it is identified as malicious. So if a phishing message lands before it is recognized, it does not sit there waiting to be clicked. The reporting also feeds the iTDC, so a wider campaign is spotted and stopped.
When it is regular, realistic, and easy to act on, yes. The goal is not to shame people who click; it is to make reporting a suspicious email a one-click reflex. A trained workforce becomes a sensor that catches the lures technology misses, and the reporting feeds straight into our response.
API-based deployment connects to your mail platform in days, no MX record changes and no mail flow risk. Tuning to your traffic follows over the first weeks.
They flow into the iTDC with everything else. AI correlates a suspicious email with identity and endpoint signals, so a phish that becomes a compromised session is seen as one story.
Yes. Supplier impersonation and hijacked vendor threads are detected from relationship and behavior signals, the patterns where standard filters are weakest.
A monthly picture of what was caught, what was removed after delivery, who is being targeted, and how user reporting is trending. Written for leadership, backed by the data.
By mailbox count, as a managed service. A short assessment of current filtering gaps is the usual starting point.
Guard for the protection layer, Implement for the around-the-clock triage and post-delivery response, with Learn tuning detection from each campaign.
Related work
Identity Threat Detection
Catch the account takeover that a phishing email leads to.
Learn more ›ServiceManaged Detection and Response
Where reported phishing and email threats get investigated.
Learn more ›ServiceData Loss Prevention
Stop sensitive data leaving over email and other channels.
Learn more ›Stop the threat before the click
Book a session with a Principal Engineer. We review how email reaches your people and show you the gaps.