Check by CyberDrain

Name: Check by CyberDrain
Rating: 4.69 (13 reviews)
Author: CyberDrain

Protect against phishing attacks targeting Microsoft 365 login pages with enterprise-grade detection

As of June 2026, Check by CyberDrain has 70,000 users and a 4.69/5 rating from 13 reviews in the Privacy & Security category.

CyberDrain Privacy & Security

Chrome Web Store ↗.crx

Users+75.0%

70.0K

70,000

Rating+0.4%

4.69

13 reviews

Reviews+8.3%

Version

1.2.0

Manifest V3

90-day change · In the last 90 days this extension gained 30.0K users, 1 version update.

History

6 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	40.0K	4.67	12	1.1.0
Apr 18, 2026	50.0K	4.67	12	1.1.0
Apr 25, 2026	50.0K	4.69	13	1.2.0
May 7, 2026	40.0K	4.69	13	1.2.0
May 13, 2026	50.0K	4.69	13	1.2.0
Jun 4, 2026	60.0K	4.69	13	1.2.0
Now	70.0K	4.69	13	1.2.0

Permissions & access

Permissions: storageactiveTabtabsscriptingwebRequestalarmsidentityidentity.email
Host access: <all_urls>

Screenshots

About

Check is an advanced open source browser extension by CyberDrain that provides real-time protection against Microsoft 365 phishing attacks. Designed for enterprises and managed service providers, Check uses sophisticated detection algorithms to identify and block malicious login pages before credentials can be compromised.

The extension integrates seamlessly with existing security workflows, offering centralized management, comprehensive logging, and CIPP integration for MSPs managing multiple Microsoft 365 tenants.

Check allows management via Group Policy, Intune Management, or your RMM and is completely brandable for a white label experience.

Check out the open source repository for Check at https://github.com/cyberdrain/Check