Incident Score: Analysis & Impact (OFFDRO1773174394)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Dropbox's Breach and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Dropbox Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Dropbox breach identified under incident ID OFFDRO1773174394.
The analysis begins with a detailed overview of Dropbox's information like the linkedin page: https://www.linkedin.com/company/Dropbox, the number of followers: 458587, the industry type: Software Development and the number of employees: 3776 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 717 and after the incident was 638 with a difference of -79 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Dropbox and their customers.
Western Australian State Government Entities recently reported "Western Australia Audit Reveals Critical Microsoft 365 Security Gaps in State Entities", a noteworthy cybersecurity incident.
A recent report by the Western Australian Office of the Auditor General (OAG) uncovered significant vulnerabilities in how state government entities manage their Microsoft 365 (M365) environments, exposing them to heightened risks of cyber incidents, data breaches, and operati...
The disruption is felt across the environment, affecting Microsoft 365 (M365), OneDrive and SharePoint, and exposing Personal and sensitive data of 32 individuals, including children, with nearly 32 records at risk, plus an estimated financial loss of $71,000.
Formal response steps have not been shared publicly yet.
The case underscores how Completed (Audit Report), teams are taking away lessons such as Proper M365 security management is critical for safeguarding government data and ensuring uninterrupted public services. Systemic gaps exist in third-party risk assessment, DLP enforcement, and phishing defenses, and recommending next steps like Implement consistent Data Loss Prevention (DLP) controls across all M365 services, Strengthen multifactor authentication (MFA) policies and Block high-risk users and sign-ins, with advisories going out to stakeholders covering Auditor-General Caroline Spencer emphasized the critical need for proper M365 security management.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Phishing (T1566) with high confidence (95%), supported by evidence indicating compromised a senior officer’s M365 account through a phishing email and Valid Accounts: Cloud Accounts (T1078.004) with high confidence (90%), supported by evidence indicating exploiting weak multifactor authentication (MFA). Under the Persistence tactic, the analysis identified Account Manipulation: Device Registration (T1098.005) with high confidence (90%), supported by evidence indicating registered their own MFA device and Office Application Startup: Outlook Rules (T1137) with moderate to high confidence (85%), supported by evidence indicating created email forwarding rules to conceal communications. Under the Privilege Escalation tactic, the analysis identified Valid Accounts: Cloud Accounts (T1078.004) with moderate to high confidence (80%), supported by evidence indicating compromised a senior officer’s M365 account. Under the Defense Evasion tactic, the analysis identified Hide Artifacts: Email Hiding Rules (T1564.008) with moderate to high confidence (85%), supported by evidence indicating created email forwarding rules to conceal communications and Modify Authentication Process: Multi-Factor Authentication (T1556.006) with moderate to high confidence (80%), supported by evidence indicating exploiting weak multifactor authentication (MFA). Under the Credential Access tactic, the analysis identified Brute Force: Password Guessing (T1110.001) with moderate to high confidence (70%), supported by evidence indicating exploiting weak multifactor authentication (MFA) and Modify Authentication Process: Multi-Factor Authentication (T1556.006) with moderate to high confidence (80%), supported by evidence indicating registered their own MFA device. Under the Discovery tactic, the analysis identified Password Policy Discovery (T1201) with moderate to high confidence (70%), supported by evidence indicating studied the victim’s email history to craft convincing social engineering and Account Discovery: Cloud Account (T1087.004) with moderate to high confidence (80%), supported by evidence indicating compromised a senior officer’s M365 account. Under the Collection tactic, the analysis identified Email Collection: Remote Email Collection (T1114.002) with high confidence (90%), supported by evidence indicating studied the victim’s email history and Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating personal and sensitive data of 32 individuals, including children. Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate to high confidence (70%), supported by evidence indicating attack went undetected for a month. Under the Exfiltration tactic, the analysis identified Transfer Data to Cloud Account (T1537) with high confidence (90%), supported by evidence indicating stored the information in Dropbox and Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with moderate to high confidence (70%), supported by evidence indicating emailing it to an unvetted third-party service provider. Under the Impact tactic, the analysis identified Financial Theft (T1657) with high confidence (95%), supported by evidence indicating resulting in the theft of $71,000. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Dropbox Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/Dropbox/incident/OFFDRO1773174394
- Dropbox CyberSecurity Rating page: https://www.rankiteo.com/company/Dropbox
- Dropbox Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/offdro1773174394-dropbox-western-australian-office-of-the-auditor-general-breach-march-2026/
- Dropbox CyberSecurity Score History: https://www.rankiteo.com/company/Dropbox/history
- Dropbox CyberSecurity Incident Source: https://www.cyberdaily.au/security/13308-wa-gov-microsoft-365-issues-led-to-71-000-being-stolen-and-exposure-of-child-data
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf