Home Security #spear-phishing

Tagged #spear-phishing

7 posts

Microsoft 365 AiTM Defense

AiTM phishing, what actually happens, and what breaks each step

The attack in plain English, mapped to ATT&CK, and which defensive control kills which step. Read this before …

Overview / Threat Model 8 min
Microsoft 365 AiTM Defense

Sentinel detection, same session, two sources

When an attacker replays a stolen cookie, the same session ID shows up from two different IPs within …

Detection 5 min
Microsoft 365 AiTM Defense

Sentinel detection, sign-in from a hosting ASN

Real users sign in from residential ISPs and corporate networks. Attackers replaying cookies sign in from rented VPS. …

Detection 6 min
Microsoft 365 AiTM Defense

Sentinel detection, suspicious sign-in plus persistence action

The highest-fidelity detection in this bundle. Catches the chain: dodgy sign-in, then within 2 hours a forwarding rule, …

Detection 6 min
Microsoft 365 AiTM Defense

Conditional Access policies that actually break AiTM

Five Conditional Access policies, deployed in this order, make AiTM economically unviable against your tenant. Plus the rollout …

Mitigation 10 min
Microsoft 365 AiTM Defense

AiTM incident response, what to do when the alert fires at 2am

Step-by-step runbook for when an AiTM detection lights up. Revoke, reset, audit, clean persistence, pivot-hunt. Exact PowerShell included.

Playbook 8 min
LinkedIn AiTM Defense

LinkedIn AiTM phishing, what actually happens, step by step

The attack in plain English. What gets captured, when reCAPTCHA matters, why li_at is the prize, and which …

Overview / Threat Model 10 min