Vaikora › Blog › Product Updates

How Cyren stages threat intelligence earlier than your SIEM sees it, and what Vaikora does with that signal

Product Updates · Nov 13, 2026 · 4 min read

Staging is the problem. Before a phishing campaign sends a single email, attackers register domains, stand up infrastructure, and configure mail servers. That window, between infrastructure creation and first use, is where most detection tools are blind.

Cyren closes that window by detecting malicious infrastructure during staging, before campaigns are weaponized. That detection happens inside the GlobalView telemetry network, which processes over a billion email, URL, and file transactions a day. The volume matters because pattern recognition at that scale surfaces low-signal indicators that would be invisible in any single organization's telemetry.

What Cyren actually detects and when

When a threat actor registers a lookalike domain, provisions a phishing kit, or wires up a mail relay, Cyren's telemetry picks up the behavioral signature of that preparation. The indicator enters Cyren's feed as a URL, domain, IP, or file hash, with a confidence score attached.

This is earlier than reactive detection. Most SIEM pipelines receive indicators after a campaign has fired: a user clicked something, a header matched a known pattern, an alert fired after delivery. Cyren's staging-phase detection means your security infrastructure can know about the domain before the first email arrives.

The practical difference: a domain blocked at staging never delivers a payload, never lands in a user's inbox, and never has the chance to trigger an AI agent workflow that acts on a phishing link or spoofed instruction.

How the signal reaches your security stack

Cyren ships through the Microsoft Sentinel Content Hub as a packaged solution. That means indicators flow into Sentinel through a prebuilt CCF connector, with analytic rules, hunting queries, and workbooks included. No custom pipeline work required.

The same indicators push into CrowdStrike Falcon and SentinelOne. That means a domain Cyren flags during staging can be blocked at the endpoint layer without an analyst manually exporting and importing an IOC list.

The workflow looks like this:

• Cyren detects a staging domain in GlobalView telemetry
• The indicator flows into Sentinel through the CCF connector
• Analytic rules surface a match if the domain appears in email headers, URL logs, or DNS queries in your environment
• The same indicator reaches CrowdStrike Falcon and SentinelOne for automated enforcement at the endpoint

Hunting queries let analysts search retrospectively for any prior contact with the domain across the full log set.

Where Vaikora intersects

Phishing is increasingly relevant to AI agent risk, not just user risk. An agent configured to read email, process attachments, or follow links in messages can be manipulated by a well-constructed phishing payload. If an agent reads a spoofed instruction embedded in a phishing email and treats it as a legitimate task, the agent acts on that instruction.

Vaikora sits inline between an AI agent and the tools or LLMs it calls. Every action the agent proposes passes through a policy check before execution. If a Cyren indicator for a known-malicious URL reaches the Vaikora policy engine, Vaikora can block an agent's attempt to fetch or forward that URL before the tool call executes.

This is enforcement before execution. The agent never reaches the external resource, the action never completes, and the decision is written to Vaikora's SHA-256 hash-chained audit log with a timestamp and the specific policy rule that triggered the block.

Vaikora integrates natively with Microsoft Sentinel, SentinelOne, and CrowdStrike Falcon. Threat intelligence flowing through those platforms from Cyren can feed directly into Vaikora's runtime policy decisions without custom engineering.

What to check in your current setup

If your organization uses Cyren and Sentinel today, confirm that:

• The CCF connector is active and indicators are flowing into the correct Sentinel workspace
• Analytic rules are enabled, not just installed
• The same workspace feeds your Vaikora control plane so agent-level policy enforcement reflects current threat intelligence

If you are running AI agents that read external content, process email, or follow URLs, treat those agents as a threat surface that your existing threat intelligence coverage needs to reach. A phishing domain your SIEM knows about should also be a domain your agents cannot call out to.

Confirm the signal path end to end: Cyren detection, Sentinel ingestion, Vaikora policy enforcement. If any leg of that chain is not connected, the intelligence stops short of where it matters.

More from the Vaikora blog