Threats and attacks guides

Business email compromise is fraud by impersonation: no malware, no link, just a convincing email asking for a payment. The main variants, why they work, and the process and technical controls that stop them.

Ransomware attacks are decided in the first two stages: initial access through phishing, weak credentials or unpatched systems, then expansion across the network. What the current data shows, what each stage relies on, and how penetration testing closes those routes before they are used.