Why this one, above every other test

Attackers stopped kicking down the front door years ago. They walk in through the help desk, the one relationship in your company built entirely on trust and speed. Microsoft Teams is an internal, trusted surface. Employees scrutinize an inbound email; they do not scrutinize a Teams message from someone who says they are IT.

Black Basta and the actor cluster tracked as Storm-1811 built an initial access playbook around exactly this. They flood a target inbox to manufacture urgency, then reach out over Teams as IT Support offering to fix the problem, and talk the employee into granting remote access. A standard email phishing simulation cannot measure this. Click rate on a fake invoice tells you nothing about whether your people will hand a stranger live control of their workstation during a friendly voice call.

This is the seam every modern intrusion runs through, and almost no one tests it. That is why it is the one simulation every security team should be running, before an attacker runs it for them.

Anatomy of the attack

Five phases, described at the what and why level, the shape of the kill chain rather than a playbook to run it.

What makes it a simulation, not an attack

Same pressure. Same channel. None of the damage. The difference is the guardrails, not the realism.

Why only Breacher.ai can run it today

Most vendors sell you a platform and leave the hard part, actually running the attack, to you. Running this chain end to end is a service, not a settings page. The market is full of tools that hand you a deepfake sample and a dashboard. Almost none will orchestrate a live, conditional Teams help desk impersonation against your workforce, hold a two way conversation through it, escalate based on how each target responds, and deliver a debrief your board can read.

Breacher.ai runs the whole thing as a managed solution. You approve the scope, we operate the entire kill chain from OSINT reconnaissance through blameless debrief, and you get the result without ever touching the attack infrastructure.

How to defend

Run the drill, then close the gaps it exposes. The controls that matter most are free.

• ✓Lock down external Teams access. Restrict external tenant messaging and federation so an outside identity cannot casually reach your employees as IT.
• ✓Verify out of band. Any request for remote access, an MFA approval, or credentials gets confirmed through a separate, known channel, always.
• ✓Publish one official help desk identity. Give employees a single, verifiable way to recognize real IT so an impostor has nothing to hide behind.
• ✓Make reporting one click. The faster a suspicious contact is reported, the smaller the window an attacker has to escalate.
• ✓Rehearse the exact scenario. Under pressure, people fall back on habit. Practice until declining the helpful IT call is muscle memory.