Research.
Original studies by the ArpSentry team and a feed of security alerts from official sources.
Latest cyberattacks and security alerts
Reports from security newsrooms, vulnerabilities CISA has confirmed are being exploited, and alerts from DNSC, CERT-EU and the UK NCSC, each linked to its source.
Email impersonation in European businesses, 2026: a passive study of 23,845 company domains in 40 countries
A passive study of 23,845 business domains in 40 countries: 73% to 79% can be impersonated by email.
- Asia and Gulf79.2%
- Central and Eastern Europe75.8%
- Western Europe72.7%
- United States71.2%
Business domains that can be impersonated by email, by region. Source: ArpSentry study, 2026.