Company Details
microsoftoutlooktools
14
539
5112
microsoftoutlooktools.com
0
MIC_5671117
In-progress


Microsoft Outlook Tools Vendor Cyber Rating & Cyber Score
microsoftoutlooktools.comMS Outlook Tools for Outlook Email & Data Management. Offers wide range of tools to easily manage MS Outlook Data & Emails from corrupt Database.
Company Details
microsoftoutlooktools
14
539
5112
microsoftoutlooktools.com
0
MIC_5671117
In-progress
Between 700 and 749

MOT Global Score (TPRM)XXXX

Description: Hackers Hijack Abandoned Outlook Add-In to Steal 4,000 Microsoft Accounts Security researchers at Koi uncovered a sophisticated phishing campaign leveraging *AgreeTo*, a once-legitimate Outlook add-in for meeting scheduling. Originally published on Microsoft’s Office Add-in Store in December 2022, the tool was abandoned by its developer, allowing attackers to seize control of its URL and repurpose it into a malicious phishing kit. When users launched the add-in, they were presented with a fake Microsoft login page designed to harvest credentials. Through the attackers’ exfiltration channel a Telegram bot API researchers confirmed the theft of over 4,000 Microsoft accounts, along with sensitive financial data, including credit card numbers and banking security answers. The campaign remained active, with threat actors testing stolen credentials to identify high-value targets for further exploitation. Microsoft intervened by removing the add-in from its marketplace, marking the first known instance of malware on the official Microsoft Marketplace and the first malicious Outlook add-in detected in the wild. Koi’s investigation also revealed that the same group operates at least a dozen other phishing kits targeting ISPs, banks, and webmail providers, though their success rates compared to *AgreeTo* remain unclear. The incident highlights the risks of abandoned software in trusted repositories, where dormant projects can be weaponized without users’ knowledge.


No incidents recorded for Microsoft Outlook Tools in 2026.
No incidents recorded for Microsoft Outlook Tools in 2026.
No incidents recorded for Microsoft Outlook Tools in 2026.
MOT cyber incidents detection timeline including parent company and subsidiaries

MS Outlook Tools for Outlook Email & Data Management. Offers wide range of tools to easily manage MS Outlook Data & Emails from corrupt Database.


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Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of Microsoft Outlook Tools is http://www.microsoftoutlooktools.com/.
According to Rankiteo, Microsoft Outlook Tools’s AI-generated cybersecurity score is 744, reflecting their Moderate security posture.
According to Rankiteo, Microsoft Outlook Tools currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, Microsoft Outlook Tools has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.
According to Rankiteo, Microsoft Outlook Tools is not certified under SOC 2 Type 1.
According to Rankiteo, Microsoft Outlook Tools does not hold a SOC 2 Type 2 certification.
According to Rankiteo, Microsoft Outlook Tools is not listed as GDPR compliant.
According to Rankiteo, Microsoft Outlook Tools does not currently maintain PCI DSS compliance.
According to Rankiteo, Microsoft Outlook Tools is not compliant with HIPAA regulations.
According to Rankiteo,Microsoft Outlook Tools is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Microsoft Outlook Tools operates primarily in the Software Development industry.
Microsoft Outlook Tools employs approximately 14 people worldwide.
Microsoft Outlook Tools presently has no subsidiaries across any sectors.
Microsoft Outlook Tools’s official LinkedIn profile has approximately 539 followers.
Microsoft Outlook Tools is classified under the NAICS code 5112, which corresponds to Software Publishers.
No, Microsoft Outlook Tools does not have a profile on Crunchbase.
Yes, Microsoft Outlook Tools maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/microsoftoutlooktools.
As of April 03, 2026, Rankiteo reports that Microsoft Outlook Tools has experienced 1 cybersecurity incidents.
Microsoft Outlook Tools has an estimated 29,329 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Cyber Attack.
Detection and Response: The company detects and responds to cybersecurity incidents through an third party assistance with koi (security researchers), and containment measures with microsoft removed the add-in from its marketplace..
Title: Hackers Hijack Abandoned Outlook Add-In to Steal 4,000 Microsoft Accounts
Description: Security researchers at Koi uncovered a sophisticated phishing campaign leveraging *AgreeTo*, a once-legitimate Outlook add-in for meeting scheduling. Originally published on Microsoft’s Office Add-in Store in December 2022, the tool was abandoned by its developer, allowing attackers to seize control of its URL and repurpose it into a malicious phishing kit. When users launched the add-in, they were presented with a fake Microsoft login page designed to harvest credentials. Through the attackers’ exfiltration channel (a Telegram bot API), researchers confirmed the theft of over 4,000 Microsoft accounts, along with sensitive financial data, including credit card numbers and banking security answers. The campaign remained active, with threat actors testing stolen credentials to identify high-value targets for further exploitation.
Type: Phishing
Attack Vector: Malicious Outlook add-in
Vulnerability Exploited: Abandoned software in trusted repository
Motivation: Financial gain, credential harvesting
Common Attack Types: The most common types of attacks the company has faced is Cyber Attack.
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through Abandoned Outlook add-in (*AgreeTo*).

Data Compromised: Over 4,000 Microsoft accounts, credit card numbers, banking security answers
Systems Affected: Microsoft accounts, Outlook add-in users
Brand Reputation Impact: Negative impact on Microsoft's marketplace trust
Identity Theft Risk: High
Payment Information Risk: High
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Credentials, Financial Data, Personally Identifiable Information and .

Entity Name: Microsoft
Entity Type: Technology company
Industry: Software
Size: Large
Customers Affected: Over 4,000

Third Party Assistance: Koi (security researchers)
Containment Measures: Microsoft removed the add-in from its marketplace
Third-Party Assistance: The company involves third-party assistance in incident response through Koi (security researchers).

Type of Data Compromised: Credentials, Financial data, Personally identifiable information
Number of Records Exposed: Over 4,000
Sensitivity of Data: High
Data Exfiltration: Yes (via Telegram bot API)
Personally Identifiable Information: Yes (credit card numbers, banking security answers)
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through by microsoft removed the add-in from its marketplace.

Lessons Learned: Risks of abandoned software in trusted repositories, where dormant projects can be weaponized without users' knowledge.
Key Lessons Learned: The key lessons learned from past incidents are Risks of abandoned software in trusted repositories, where dormant projects can be weaponized without users' knowledge.

Source: Koi security researchers
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Koi security researchers.

Investigation Status: Ongoing (campaign remained active)

Entry Point: Abandoned Outlook add-in (*AgreeTo*)
High Value Targets: Yes (threat actors tested stolen credentials for high-value targets)
Data Sold on Dark Web: Yes (threat actors tested stolen credentials for high-value targets)

Root Causes: Abandoned software in Microsoft’s Office Add-in Store, lack of monitoring for dormant projects
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Koi (security researchers).
Most Significant Data Compromised: The most significant data compromised in an incident were Over 4,000 Microsoft accounts, credit card numbers and banking security answers.
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was Koi (security researchers).
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident was Microsoft removed the add-in from its marketplace.
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Over 4,000 Microsoft accounts, credit card numbers and banking security answers.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 4.0K.
Most Significant Lesson Learned: The most significant lesson learned from past incidents was Risks of abandoned software in trusted repositories, where dormant projects can be weaponized without users' knowledge.
Most Recent Source: The most recent source of information about an incident is Koi security researchers.
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing (campaign remained active).
Most Recent Entry Point: The most recent entry point used by an initial access broker was an Abandoned Outlook add-in (*AgreeTo*).
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Hirschmann EagleSDV version 05.4.01 prior to 05.4.02 contains a denial-of-service vulnerability that causes the device to crash during session establishment when using TLS 1.0 or TLS 1.1. Attackers can trigger a crash by initiating TLS connections with these protocol versions to disrupt service availability.
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Multiple reflected cross-site scripting (XSS) vulnerabilities in the login.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda and red_url parameters.
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