How does infrastructure intelligence differ from threat intelligence?

Traditional threat intelligence focuses on indicators of compromise (IOCs) like malicious IPs, domains, and file hashes. Infrastructure intelligence goes deeper by analyzing the relationships between internet infrastructure components — how routing, DNS, hosting, and ownership data connect — to provide context that explains why an indicator is malicious and what other infrastructure is related to it.

What data sources does infrastructure intelligence use?

Infrastructure intelligence correlates data from five primary sources: BGP routing (Border Gateway Protocol announcements, route changes, and peering relationships), DNS (domain resolution records, zone changes, nameserver mappings), hosting infrastructure (IP allocation, hosting provider identification, server relationships), WHOIS/ownership data (domain registration, registrar changes, ownership patterns), and SSL/TLS certificates (certificate transparency logs, issuance patterns, certificate relationships).

Who uses infrastructure intelligence?

Infrastructure intelligence is used by threat intelligence teams to enrich IOCs with infrastructure context, security operations centers (SOCs) to accelerate alert triage and investigation, incident response teams to trace attacker infrastructure, risk management teams to assess third-party and supply chain cyber risk, and brand protection teams to detect domain spoofing and phishing campaigns.

What is a knowledge graph in cybersecurity?

A knowledge graph in cybersecurity is a data structure that represents internet infrastructure entities (domains, IPs, ASNs, organizations) as nodes and their relationships (resolves_to, routes, registered_by) as edges. This enables graph traversal queries that discover hidden connections between infrastructure components — for example, finding all domains hosted on the same IP as a known malicious domain, or tracing a suspicious IP back to its autonomous system and peering relationships.

What Is Infrastructure Intelligence?

Infrastructure intelligence is the real-time collection, correlation, and analysis of internet infrastructure data — including BGP routing, DNS records, hosting providers, WHOIS ownership, and SSL/TLS certificates — to detect, investigate, and respond to cyber threats.

Why Infrastructure Intelligence Matters

The internet runs on infrastructure — routing protocols, DNS servers, hosting providers, and domain registrars. Attackers exploit this same infrastructure to launch campaigns, host malware, and evade detection. Traditional security tools monitor endpoints and network traffic but lack visibility into the infrastructure layer where threats originate and operate.

Infrastructure intelligence fills this gap by monitoring internet infrastructure in real time and connecting data across multiple layers to reveal patterns, relationships, and anomalies that point-solution tools miss.

The Five Pillars of Infrastructure Intelligence

1. BGP Routing Intelligence

Border Gateway Protocol (BGP) determines how traffic flows across the internet. Infrastructure intelligence monitors BGP announcements in real time to detect route hijacks, route leaks, and anomalous origin changes. By correlating BGP data with DNS, hosting, and ownership records, analysts can distinguish legitimate network changes from malicious activity.

2. DNS Intelligence

DNS is the naming system of the internet. Infrastructure intelligence tracks DNS record changes, nameserver modifications, zone transfers, and domain registrations. This data reveals domain infrastructure relationships — which domains share nameservers, which IPs a domain has resolved to historically, and how SPF and mail routing chains connect organizations.

3. Hosting Infrastructure Mapping

Every domain resolves to an IP hosted by a provider. Infrastructure intelligence maps hosting relationships to identify shared infrastructure, co-located services, and hosting patterns associated with malicious activity. This enables analysts to find related malicious infrastructure by examining hosting neighbors.

4. WHOIS and Ownership Tracking

Domain registration data reveals who owns infrastructure. Infrastructure intelligence monitors WHOIS records for ownership changes, registrar transfers, and registration patterns. Historical WHOIS data enables analysts to track how domain ownership has changed over time and identify patterns in bulk domain registrations used in phishing campaigns.

5. SSL/TLS Certificate Analysis

Certificates authenticate identity on the internet. Infrastructure intelligence monitors certificate transparency logs to detect newly issued certificates for suspicious domains, track certificate reuse across infrastructure, and identify certificate patterns associated with threat actors.

How Infrastructure Intelligence Differs from Threat Intelligence

Traditional threat intelligence focuses on indicators of compromise (IOCs) — malicious IPs, domains, file hashes, and URLs. These indicators tell you what is malicious but not why or what else is connected to it.

Infrastructure intelligence provides the context layer. It answers questions like: What autonomous system routes this IP? What other domains share this nameserver? Who registered this domain, and what other domains did they register? Has this IP prefix been involved in BGP anomalies?

This contextual understanding enables security teams to pivot from a single indicator to an entire attacker infrastructure footprint, turning reactive detection into proactive threat hunting.

Knowledge Graphs for Cybersecurity

Infrastructure intelligence platforms use knowledge graphs — data structures that represent entities (domains, IPs, ASNs, organizations) as nodes and their relationships (resolves_to, routes, registered_by) as edges. Knowledge graphs enable:

Multi-hop traversal: Follow chains of relationships to discover infrastructure connected to a threat indicator, even if that infrastructure hasn't been flagged yet.
Pattern detection: Identify clusters of related infrastructure based on shared attributes like registration patterns, hosting providers, or nameservers.
Temporal analysis: Track how infrastructure relationships change over time to detect attacker staging and campaign evolution.
Cross-layer correlation: Connect data across BGP, DNS, hosting, and ownership layers that siloed tools analyze separately.

Use Cases

Threat Investigation and Response

When a security alert fires, infrastructure intelligence provides immediate context: the IP's autonomous system, its geolocation, related domains, hosting provider, and threat feed presence. Analysts can pivot from one indicator to discover the full scope of attacker infrastructure in minutes instead of hours.

Attack Surface Discovery

Organizations often have unknown internet-facing assets. Infrastructure intelligence maps an organization's complete external footprint by tracing ASNs, IP prefixes, domains, and subdomains — revealing shadow IT, forgotten services, and misconfigured infrastructure.

Supply Chain Risk Assessment

Modern organizations depend on third-party infrastructure for DNS, hosting, email, and CDN services. Infrastructure intelligence maps these dependencies and monitors them for changes that could indicate compromise, misconfiguration, or supply chain risk.

Brand Protection

Infrastructure intelligence detects domain spoofing, typosquatting, and phishing infrastructure by monitoring domain registrations, examining hosting patterns, and correlating suspicious domains with known threat infrastructure.

Whisper Security's Approach

Whisper Security provides infrastructure intelligence through a semantic knowledge graph containing 45 billion interconnected data points. The platform unifies BGP routing, DNS, hosting, WHOIS ownership, and SSL/TLS certificate data into a single queryable graph, enabling security teams to investigate threats, discover attack surfaces, and assess infrastructure risk in real time.

Learn more about the Whisper platform or explore the technical documentation.