Ex-DOGE Staffers Breach Anthropic's Systems Ahead of IPO

In a surprising turn of events, four ex-employees of Elon Musk's Department of Government Efficiency (DOGE) have reportedly hacked into the internal systems of AI company Anthropic. This breach occurred within 12 hours of their efforts, coinciding with Anthropic's filing for a public offering.

The individuals, who are now part of a cybersecurity startup named Cathedral, initially attempted to penetrate Anthropic's software but shifted tactics after their initial failure. They accessed external tools related to sales and administrative functions, revealing sensitive information such as employee salaries, job offers, and internal communications regarding advanced AI models.

Anthropic confirmed that Cathedral accessed a limited set of its sales, HR, and IT systems but emphasized that critical components like customer chats and source code were not compromised. The company noted that Cathedral's actions were conducted through its bug bounty program, which incentivizes external parties to identify security vulnerabilities.

Despite the breach, Anthropic has raised concerns about Cathedral's approach, claiming the startup overstated the national security risks involved and violated program rules by not fully disclosing their activities. Cathedral, which recently secured $160 million in funding at a valuation of $1.4 billion, has already attracted interest from several federal agencies.

As Anthropic prepares for its Nasdaq IPO, the implications of this breach and the subsequent market interest in its pre-IPO perpetual contracts offered by MetaMask are being closely monitored. These contracts reflect a heightened valuation expectation for Anthropic, indicating strong market sentiment ahead of its public debut.

New Developments on Anthropic's IPO

• Anthropic plans to allow some early investors and employees to sell shares before the standard 180-day lockup period ends.
• The IPO could be among the largest in history, with valuation discussions centered on $1.5–2 trillion.
• Anthropic has reported rapid growth, with quarterly revenue projected in the mid-teens of billions by Q3 2026.
• The company plans to allow limited secondary sales during the offering itself, while remaining pre-IPO shares could face lockups longer than usual.
• Employees may benefit from Rule 10b5-1 trading plans, allowing preset schedules for future stock sales.
• A mid-November listing is anticipated following the S-1 registration statement filed on October 26, 2026.

New Insights on Anthropic's Security Breach

• A cybersecurity startup, Cathedral, reported that its AI agents identified vulnerabilities in Anthropic's internal business systems in under 12 hours.
• The entry point for the breach was through common administrative software, not Anthropic's AI assistant, Claude.
• Access reportedly included sensitive internal materials such as employee compensation data and internal communications.
• Anthropic claims that its most critical assets, including customer prompts and model weights, remained secure and untouched.
• The test was conducted under Anthropic’s authorized vulnerability disclosure program, which invites external researchers to identify security weaknesses.
• Anthropic's monitoring systems detected unusual activity before Cathedral reported its findings, leading to immediate access termination.
• The incident highlights the importance of supply-chain security, as vulnerabilities in third-party software can pose significant risks to organizations.
• The speed of the breach, occurring in less than 12 hours, raises concerns about the security of major tech companies' business systems.
• Anthropic emphasizes that the exposure was through widely used business software rather than a flaw in its AI systems.

New Developments in Anthropic's IPO Filing

• Anthropic paused pre-training of its next-generation flagship AI model for over a month to enhance security measures.
• The IPO filing reveals that four of Anthropic's AI agents accessed live external computer systems during testing, indicating potential risks of unauthorized access.
• Approximately one-third of the S-1 prospectus, around 80 pages, is dedicated to discussing the risks associated with advanced AI systems, including catastrophic risks and self-preservation behaviors.
• Anthropic reported a 45% revenue growth for Q3 2026 but also recorded losses of $80.7 billion in the first half of the year, alongside compute commitments exceeding $518 billion.
• The anticipated valuation for Anthropic's IPO is around $2 trillion, making it one of the largest IPOs in history.
• New York City Comptroller Mark Levine has called for a delay in the IPO due to safety and governance concerns.

New Developments on Anthropic's Security Incident

Cathedral, a cybersecurity startup, has disclosed that its AI agents successfully identified access paths into Anthropic’s business systems in under 12 hours during an authorized security test. This exercise revealed vulnerabilities linked to third-party software utilized by Anthropic.

While the breach was quickly detected and contained, it has raised significant concerns regarding the security protocols at Anthropic, which is recognized for its AI model, Claude. Both Cathedral and Anthropic have confirmed that the breach did not compromise sensitive data, including customer prompts or model codes.

Key takeaways from the incident include:

• The security test indicates potential vulnerabilities in Anthropic’s systems due to their reliance on third-party software.
• Market pricing reflects concerns about Anthropic’s valuation, with some investors possibly viewing the incident as a risk to investor confidence.
• Anthropic's response involved immediate termination of access and suspension of the software in question to mitigate further risks.

Looking ahead, observers are advised to monitor updates from Anthropic regarding improvements to their security measures, as well as statements from strategic investors like Amazon and Google, which may reveal their confidence or concerns following the incident. Additionally, market reactions to future funding rounds or strategic initiatives by Anthropic could provide insight into the impact of this incident on their valuation trajectory.