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Analyze » Anthropic » ANT1774981746

Incident Score: Analysis & Impact (ANT1774981746)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-59
Company Score Before Incident775 / 1000
Company Score After Incident716 / 1000
Company LinkView Anthropic Profile
INCIDENT NUMBERANT1774981746
Type of Cyber IncidentBreach
ATTACK VECTORHuman Error (Misconfiguration)
DATA EXPOSED500,000 lines of source code...
INCIDENT DATE31/01/2025
STATUSpublished

Key Highlights From The Incident Analysis

  • Timeline of Anthropic'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 Anthropic 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 Anthropic breach identified under incident ID ANT1774981746.

The analysis begins with a detailed overview of Anthropic's information like the linkedin page: https://www.linkedin.com/company/anthropicresearch, the number of followers: 1898947, the industry type: Research Services and the number of employees: 3717 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 775 and after the incident was 716 with a difference of -59 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 Anthropic and their customers.

Anthropic recently reported "Anthropic Accidentally Leaks Claude Code Source, Exposing Internal AI Systems", a noteworthy cybersecurity incident.

Anthropic has inadvertently leaked the source code for *Claude Code*, its widely adopted AI-powered coding assistant, exposing roughly 500,000 lines of code across 1,900 files.

The disruption is felt across the environment, affecting Claude Code AI-powered coding assistant, internal AI systems, and exposing 500,000 lines of source code across 1,900 files, with nearly 1,900 files records at risk.

In response, moved swiftly to contain the threat with measures like Code removed from NPM, and began remediation that includes Implementing measures to prevent future incidents, and stakeholders are being briefed through Public disclosure and acknowledgment of the incident.

Overall, the incident is a reminder of why proactive monitoring and strong governance matter.

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 Supply Chain Compromise: Compromise Software Dependencies and Development Tools (T1195.002) with moderate confidence (60%), supported by evidence indicating internal code was mistakenly uploaded to NPM, a platform for software distribution. Under the Exfiltration tactic, the analysis identified Exfiltration Over Web Service: Exfiltration to Cloud Storage (T1567.002) with moderate to high confidence (80%), supported by evidence indicating 500,000 lines of source code across 1,900 files...mistakenly uploaded to NPM. Under the Collection tactic, the analysis identified Data from Information Repositories: Code Repositories (T1213.003) with high confidence (90%), supported by evidence indicating exposing roughly 500,000 lines of code across 1,900 files. Under the Impact tactic, the analysis identified Defacement: Internal Defacement (T1491.001) with moderate confidence (50%), supported by evidence indicating exposing internal AI systems...could allow competitors to reverse-engineer and Gather Victim Network Information: Infrastructure (T1590.001) with moderate to high confidence (70%), supported by evidence indicating reveal vulnerabilities in how *Claude Code* interacts with Anthropic’s internal systems. Under the Defense Evasion tactic, the analysis identified Modify Authentication Process: Network Device Authentication (T1556.008) with lower confidence (40%), supported by evidence indicating potentially allowing malicious actors...to bypass existing safeguards. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Supply Chain Compromise: Compromise Software Dependencies and Development Tools (60%)
Exfiltration
Exfiltration Over Web Service: Exfiltration to Cloud Storage (80%)
Collection
Data from Information Repositories: Code Repositories (90%)
Impact
Defacement: Internal Defacement (50%)
Gather Victim Network Information: Infrastructure (70%)
Defense Evasion
Modify Authentication Process: Network Device Authentication (40%)

Sources & References