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Threat Hunting Services

Uncover Threats Standard Alerts May Miss

CISO Global threat hunting services investigate suspicious behavior and signs of compromise across your environment.

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Why Suspicious Activity Can Be Hard to Confirm

Attackers can use valid accounts, trusted applications, and legitimate administrative tools, making malicious activity difficult to distinguish from normal operations.

A threat hunt tests a specific concern against available security data to determine whether the activity is malicious, benign, unresolved, or the result of a monitoring or detection gap.

When to Use Threat Hunting

Threat hunting may be appropriate when:

Suspicious activity has been observed, but an incident has not been confirmed
Alerts are incomplete, conflicting, or difficult to validate
A recent incident raises concerns about remaining attacker access
A merger, acquisition, migration, or major infrastructure change requires a focused review for signs of compromise
Critical systems, privileged accounts, or sensitive data require additional investigation
Internal teams have security tools but limited capacity for an analyst-led investigation

Threat Hunting Scope and Deliverables

Each engagement defines the investigative question, systems, accounts, time range, and data sources in scope, along with the findings and recommendations your team will receive.

Defined Hunt Scope

CISO Global documents the investigation objective, time range, systems, accounts, data sources, and questions the hunt is intended to answer.

Data Sources Reviewed

We document and analyze the available endpoint, identity, cloud, network, server, and log data relevant to the hunt.

Validated Findings

We classify identified activity as malicious, suspicious and requiring further review, expected behavior, misconfiguration, or unresolved because of insufficient evidence.

Detection and Visibility Gaps

We identify missing telemetry, limited retention, configuration issues, and monitoring gaps that affected the investigation.

Findings and Actions

We deliver an executive summary, technical findings, hunt methodology, investigation limitations, and prioritized remediation or investigative actions.

Examples of Threat Hunt Findings

Depending on the scope and available data, a threat hunt may uncover:

Account and
Access Abuse

  • Compromised or misused accounts
  • Unauthorized remote access
  • Privilege escalation or abnormal authentication activity

Attacker Movement
and Persistence

  • Malware or ransomware precursor activity
  • Persistence mechanisms
  • Lateral movement between systems or accounts

Suspicious Behavior
and Visibility Gaps

  • Suspected insider misuse or other unauthorized activity
  • Behavior associated with known attacker techniques
  • Missing telemetry or insufficient detection coverage

How a Threat Hunting Engagement Works

Each engagement begins with a defined investigative question, scope, time range, and set of available data sources.

Define the Hunt

Establish the concern to investigate, objectives, systems, accounts, time range, and available data sources.

Confirm Available Data

Review telemetry availability, quality, and retention to determine which questions the available data can reasonably answer.

Search for Threat Behavior

Analyze available data for indicators, attacker techniques, credential misuse, persistence, lateral movement, unauthorized access, and other relevant behavior.

Validate Findings

Classify identified activity as malicious, suspicious, expected, misconfigured, or unresolved because of insufficient evidence.

Report and Escalate

Document the scope, data reviewed, findings, investigation limitations, and recommended remediation or investigative actions.

Threat Hunting and Incident Response

Threat hunting addresses suspicious or lingering activity that has not been confirmed as an incident. When a hunt confirms malicious activity, CISO Global can transition the findings into Incident Response Services for containment, digital forensics, remediation, and recovery.

Why CISO Global for Threat Hunting

Hunts Built Around Defined Questions

Each engagement begins with a specific concern, investigation scope, time range, and set of available data sources.

Analysis Across Relevant Security Data

Hunts can incorporate available endpoint, identity, cloud, network, server, and log data based on the engagement scope.

Clearly Classified Findings

Reports distinguish malicious activity, suspicious behavior, expected operations, configuration issues, visibility gaps, and unresolved questions.

Direct Transition to Incident Response

When a hunt confirms malicious activity, the findings can transition into incident response and digital forensics without starting a separate investigation.

Investigate Suspicious Activity

Determine whether suspicious activity is malicious, benign, or unresolved—and whether the appropriate action is incident response, remediation, or improved monitoring.

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Frequently Asked Questions

What is threat hunting?

Threat hunting is a focused, analyst-led investigation that searches available security data for evidence of malicious or unauthorized activity that may not have generated a clear alert.

How is threat hunting different from incident response?

Incident response begins when an organization suspects or confirms an incident and needs containment, investigation, or recovery support. Threat hunting examines suspicious, unresolved, or potentially lingering activity that has not yet been confirmed as an active incident.

When should an organization conduct a threat hunt?

Organizations often use threat hunting after suspicious activity, following a prior incident, during major infrastructure changes, after a merger or acquisition, or as part of periodic security validation.

What systems are reviewed during a threat hunt?

The scope depends on the environment and objectives, but threat hunts often review endpoint telemetry, servers, cloud systems, identity platforms, authentication logs, network data, and other available security data.

What happens if malicious activity is found?

CISO Global documents the affected systems, accounts, and observed activity and can transition the engagement into incident containment, digital forensics, remediation, and recovery support.

Can threat hunting help after an incident?

Yes. Threat hunting can help evaluate whether remediation addressed the known activity, look for signs of remaining attacker access, and identify security gaps that could contribute to another incident.

How is threat hunting different from security monitoring?

Security monitoring continuously reviews alerts and telemetry for suspicious activity. Threat hunting is a focused, analyst-led investigation built around specific concerns, hypotheses, or attacker behaviors that may not have triggered an alert.