Stable signalFree or hybridHigh-risk permissions

Check by CyberDrain

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

Users70KCurrent public install base

Rating4.7Store average score

Reviews13Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Check by CyberDrain Media preview

4 assets

Trend

User growth trend

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

4.69

Latest

4.69

7-day rating change

0.00

2026年7月15日2026年7月21日

Growth overview

Daily, weekly, and monthly growth

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1-day growthNo data

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7-day growthFlat

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30-day growthNo data

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Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.1.0

ManifestV3

Size216KiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

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

Reviews

Recent review snapshot

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Store average score4.7Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.6Average computed only from synced review bodies below

Reviews with text11Synced review bodies

Total ratings / reviews13Chrome Web Store public rating/review count

Store average score: 4.7. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

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