23andMe Breach Incident Score: Analysis & Impact (23A4902149112025)

In this Rankiteo incident briefing, we review the 23andMe breach identified under incident ID 23A4902149112025.

The analysis begins with a detailed overview of 23andMe's information like the linkedin page: https://www.linkedin.com/company/23andme, the number of followers: 80552, the industry type: Biotechnology Research and the number of employees: 633 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 685 and after the incident was 291 with a difference of -394 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 23andMe and their customers.

23andMe (now Chrome Holding Co.) recently reported "23andMe Data Breach and Bankruptcy Settlement", a noteworthy cybersecurity incident.

23andMe (now Chrome Holding Co.) filed for Chapter 11 bankruptcy in March 2025 following a 2023 data breach that exposed the data of nearly 7 million people.

The disruption is felt across the environment, and exposing Nearly 7 million records, with nearly Nearly 7 million records at risk, plus an estimated financial loss of {'settlement_costs': '$62 million (total proposed)', 'us_class_action_fund': '$30 million–$50 million', 'canadian_class_action_fund': '$3.25 million', 'arbitration_settlement': '$9 million (revised from $6.5 million)', 'asset_sales': '$300 million (to co-founder Anne Wojcicki and related nonprofit)', 'lemonaid_sale': '$10 million (to Bambumeta Ventures LLC)', 'bankruptcy_filing': 'Chapter 11 (March 2025)'}.

In response, while recovery efforts such as Asset sales ($300M to co-founder, $10M for Lemonaid), Settlement negotiations (arbitration, class actions) and Fraudulent claim removal (~157,000) continue, and stakeholders are being briefed through Bankruptcy court hearings, Negotiations with creditors/states and Public disclosures via legal filings.

The case underscores how Ongoing (settlements pending final approval, cyber-insurance negotiations in progress), with advisories going out to stakeholders covering Bankruptcy court hearings (e.g., 11/19/25), Creditor committee briefings and State AG objections and negotiations.

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.

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 Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating data breach (2023) leading to loss of customer trust (implied credential abuse). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (95%), supported by evidence indicating nearly 7 million records exposed, including PII and Genetic Data. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol (T1048) with high confidence (90%), supported by evidence indicating data exfiltration such as Yes (7M records including PII/genetic data). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating no ransomware confirmed, but data breach implies potential destructive impact and Inhibit System Recovery (T1490) with moderate to high confidence (85%), supported by evidence indicating company wind-down, asset liquidation and bankruptcy due to breach fallout. Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with lower confidence (40%), supported by evidence indicating no direct evidence, but lack of containment/remediation details suggests possible cleanup. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.