CyberCheck360: Post-Delivery Email Security for the Era of AI-Powered Threats
Email is the primary attack surface of every organisation. It is also where traditional security is failing fastest.
AI-generated phishing now dominates the threat landscape, rendering signature-based detection obsolete. Attackers create hyper-personalised messages at scale with no detectable payload, no known signature, and no prior reputation to check against. In 2025 testing, Gmail and Outlook allowed 86% and 96% of AI-generated phishing emails through their native filters. The structural gap between what email gateways are built to catch and what modern attackers send is widening, not closing.
CyberCheck360 is an ISO 27001:2022 certified post-delivery email security platform built and operated by Kaavalan Limited in Dublin, Ireland. It closes that gap with a different architectural principle: isolation by design, zero trust at click time.
THE PROBLEM WITH DETECTION-FIRST SECURITY
Every email gateway, whether Microsoft Defender, Mimecast, Proofpoint, or Google Workspace native, makes a binary decision at delivery against known signatures and reputation data. That model cannot handle links that are clean at delivery and weaponised hours later. It cannot handle domains registered yesterday with no reputation. It cannot handle AI-crafted messages that carry no detectable payload until the user clicks.
CyberCheck360 changes the question. Instead of asking "is this threat known?" at delivery, it asks at click time: does it matter whether this threat is known, if it never reaches the endpoint?
THE ARCHITECTURE: ISOLATION BY DESIGN
When a user clicks a link in email, CyberCheck360 intercepts the click and opens the destination inside a disposable cloud sandbox on isolated infrastructure. The link executes fully, including any credential harvester, zero-day exploit, or delayed payload, inside the container, not on the user's device or corporate network. The container is destroyed at session end. The endpoint is untouched regardless of what the link contained.
This is the correct architectural response to a threat environment where detection is structurally outpaced by attack velocity. Whether the link is known malicious, unknown, polymorphic, or AI-crafted makes no difference: containment architecture replaces detection dependency.
CyberCheck360 deploys as a post-delivery layer behind any existing gateway without replacing it. No MX record changes. No endpoint agents. No infrastructure to provision. Deploys from the Microsoft 365 or Google Workspace admin console in minutes.
WHAT THE PLATFORM DELIVERS
Isolation: Every suspicious link clicked from email opens in a disposable cloud sandbox. Every attachment detonates in the same isolated environment. Link Rewriting applies this automatically across the entire organisation at delivery, so every link opens in isolation by default without end-user action. Zero trust at every click.
Intelligence: Every verdict is backed by live threat feed aggregation, URL and domain reputation checking, email header analysis (SPF, DKIM, DMARC), and AI-powered brand impersonation detection for spoofed sender identities that pass authentication checks.
Visibility: Every isolation event generates a security log with device, network source, verdict, and destination. When a threat is confirmed post-delivery, a single query returns the complete blast radius: every device that interacted with the URL, timestamped and mapped to host. Incident response that previously took days of SIEM correlation completes in seconds.
Access Control: Org-level blocklists for IPs, URLs, and domains. Zero-trust local access policies with admin-controlled approval for trusted links. Granular file permission management for sandbox downloads.
Response: Post-delivery email quarantine across the organisation. Incident timeline export to any GRC platform in formats compatible with NIS2, DORA, and cyber insurance requirements.
MICROSOFT 365 SECURITY CONFIGURATION AUDIT
Most organisations are not extracting full value from the security controls already in their Microsoft 365 licence. Default settings leave significant exposure that could be closed without additional spend. CyberCheck360 offers a one-week Microsoft 365 Security Configuration Audit that reviews and optimises existing Defender, Exchange Online Protection, Conditional Access, and Secure Score settings to their maximum protective configuration. Available standalone or as part of platform onboarding.
The product is live, generating revenue, ISO 27001:2022 certified, EU-hosted, and deployable to a 250-seat Microsoft 365 tenant in under an hour.
Learn more: www.cybercheck360.com
Why work with us
Why organisations choose CyberCheck360
Traditional email gateways block what they recognise. They cannot block what they have never seen.
Modern attacks use short-lived URLs, legitimate hosting infrastructure, and AI-crafted messages with no detectable signature. They pass every filter check and land in the inbox looking clean. The risk is not at delivery. It is at the click.
CyberCheck360 sits between the click and the consequence. Every suspicious link and attachment opens in an isolated cloud sandbox before it can reach the endpoint or the network. No detection required. No SOC needed to operate it.
For the CISO: A measurable, auditable isolation layer that closes the post-delivery gap your gateway cannot cover. Deploys in minutes. Produces the incident evidence your board and auditors ask for.
For the business owner: Your team keeps working. Suspicious emails are checked safely in seconds without involving IT. Incidents that previously reached your security team drop significantly.
For the IT lead: No MX changes. No endpoint agents. One admin console setting. Live within the hour.
