Protect Your Users from AiTM Attacks | Install Check for Chrome & Edge
Phishing attacks are getting smarter — now your browser can be too. 🧠
In this video, we’re checking out Check, a free and open-source browser extension built to stop Microsoft 365 phishing and AiTM (Adversary-in-the-Middle) attacks before they happen.
Created by the team at CyberDrain, Check uses advanced detection algorithms to spot malicious login pages in real time and block them before credentials can be stolen.
We’ll cover:
🧩 What Check is and how it works
🛡️ How to install it for Chrome and Edge
🏢 Why it’s perfect for MSPs and enterprises (with optional CIPP integration)
🎨 How to white-label and brand it for your organization
Check collects no data, no telemetry, and no analytics — it’s completely private and community-driven.
If you manage Microsoft 365 tenants or just want an extra layer of phishing protection, this extension is a no-brainer.
Chapters:
0:00 - Welcome to SYNACK Time
0:39 - Token theft demo (no protection)
2:19 - Documentation for Check
3:40 - Token theft demo (with Check)
6:12 - Wrap up
Resources:
Check - https://docs.check.tech
Check github - https://github.com/cyberdrain/Check
Cyberdrain - https://cyberdrain.com
SYNACK Time - https://synacktime.com
SYNACK Time github - https://github.com/SynAckTime/
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