Guides & Ebooks

Practical Security Guidance for European Organisations

Free, in-depth guides on attack surface management, European regulatory compliance, threat intelligence, and cybersecurity programme management — written for mid-market security professionals.

New for 2026 · Free Download

2026 European External Threat Landscape Report

Analysis of 10,000+ Organisations

Our most comprehensive research report yet. Drawn from ThreatLens360 data across 10,000+ European organisations, this report reveals the key external threat trends, the most commonly exploited vulnerabilities, and how security postures compare across industries and geographies.

Top 10 attack vectors targeting European mid-market organisations
Industry-by-industry security posture benchmarks
GDPR, NIS2, and DORA compliance posture analysis
Predictions and recommendations for 2026
48 pages · PDF

All Guides and Resources

Free to download — no registration required for most guides.

Attack Surface
32 pages

The Complete Guide to External Attack Surface Management

Everything mid-market security teams need to know about EASM — from foundational concepts to implementation best practices and tooling selection criteria.

For: Security Teams & CISOs
Download
Regulatory
18 pages

NIS2 Compliance Checklist for Essential and Important Entities

A practical, actionable NIS2 compliance checklist covering all Article 21 measures with assessment criteria, evidence requirements, and implementation guidance.

For: CISOs, Risk & Compliance
Download
Regulatory
24 pages

DORA Third-Party Risk Management Implementation Guide

Step-by-step guidance for financial entities building DORA-compliant ICT third-party risk management frameworks — from risk register design to continuous monitoring.

For: Financial Services CISOs
Download
Threat Intelligence
22 pages

Dark Web Monitoring: A Practical Guide for Security Teams

What dark web monitoring is, what it finds, how to operationalise alerts, and how to evaluate dark web monitoring vendors — written for security practitioners.

For: Security Analysts & SOC Teams
Download
Third-Party Risk
20 pages

Vendor Security Assessment Playbook

A complete playbook for running efficient vendor security assessments — from initial questionnaire to ongoing monitoring, with templates and scoring methodology.

For: Risk, Procurement & IT Security
Download
Leadership
16 pages

Board Cybersecurity Reporting: A CISO's Guide

How to translate technical security metrics into board-level reporting that drives decisions and secures budget. Includes report templates and communication frameworks.

For: CISOs & Security Leaders
Download
Insurance
14 pages

Cyber Insurance Readiness Guide

How to prepare your organisation for a cyber insurance application, improve your insurability, and use security posture data to negotiate better coverage and premiums.

For: CISOs, CFOs & Risk Managers
Download
M&A
26 pages

M&A Cyber Due Diligence Playbook

A comprehensive guide to cyber due diligence in M&A transactions — from early-stage target assessment to post-close integration risk management.

For: M&A Teams, Legal & CISOs
Download

Want Personalised Guidance?

Our security advisors can walk you through how ThreatLens360 applies to your specific organisation, industry, and regulatory requirements.