Guides
In-depth resources to understand cybersecurity challenges and achieve compliance.
How to analyze email headers: a guide for security teams
Read email headers step by step: find the real sender, check SPF, DKIM and DMARC results, and spot anomalies in the Received chain.
Read guideHow to configure SPF, DKIM and DMARC: step-by-step guide
Configure SPF, DKIM and DMARC on your domain step by step, with examples for OVH, Cloudflare, Google Workspace and Microsoft 365, plus troubleshooting.
Read guideHow to spot a fraudulent email: 9 warning signs for employees
How to identify phishing emails at work: 9 warning signs with real examples, how to verify each one, and what to do when an email looks off.
Read guideWhat to do after a phishing attack: incident response guide
Step-by-step procedure when an employee clicks a phishing email: containment, GDPR/CNIL obligations, police report, internal communication and insurance.
Read guideNIS2 for SMEs: obligations, penalties and compliance checklist
NIS2 guide for small and mid-sized businesses: who is affected, the 10 Article 21 obligations, penalties and executive liability, and a 20-point checklist.
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