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HomeTopics 1Access Control SystemsCloudflare's Internal Systems Breached: What We Know and How to Stay Protected

Cloudflare’s Internal Systems Breached: What We Know and How to Stay Protected


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In November 2023, internet security giant Cloudflare experienced a security incident involving unauthorized access to its internal Atlassian servers.

This event raises crucial questions about cloud security, data protection, and the potential impact on users and businesses. Let’s delve into the details of the breach, its implications, and what you can do to mitigate similar risks.

The Breach Breakdown:

The attackers gained access by exploiting stolen authentication tokens obtained through a separate Okta breach in October 2023. They breached Cloudflare’s self-hosted Confluence wiki, Jira bug database, and Bitbucket source code management system. While no customer data or core Cloudflare systems were compromised, the attackers accessed internal documents, employee passwords, and confidential information.

What Does This Mean for You?

Although direct user data wasn’t affected, the breach highlights the interconnectedness of online systems and the potential domino effect of security incidents. If attackers exploit vulnerabilities in one platform, they might attempt to access others connected to it. Here’s what to consider:

  • Potential Information Leakage: While Cloudflare insists no client data was accessed, leaked internal documents may reveal sensitive information about internal processes, customer interactions, or future plans.
  • Supply Chain Security Risks: The incident underscores the importance of secure third-party integrations and the need for robust vendor risk management.
  • Password Security: The breach emphasizes the importance of strong and unique passwords, ideally combined with multi-factor authentication (MFA).

10 Tips to Stay Protected:

  1. Implement and enforce strong password policies with MFA everywhere.
  2. Stay vigilant about phishing attempts and suspicious emails.
  3. Be cautious about sharing sensitive information online and on third-party platforms.
  4. Regularly update software and applications to patch known vulnerabilities.
  5. Monitor your accounts for suspicious activity and changes.
  6. Enable two-factor authentication on all your accounts where possible.
  7. Educate your employees about cybersecurity best practices.
  8. Conduct regular security assessments and penetration testing.
  9. Implement data loss prevention (DLP) solutions to protect sensitive data.
  10. Stay informed about current cyber threats and trends.


While Cloudflare took swift action to mitigate the breach and assures that core client data wasn’t compromised, the incident serves as a valuable reminder of the evolving cyber threat landscape. By prioritizing strong security practices, staying vigilant, and adapting to new threats, we can all contribute to a more secure online environment. Remember, cybersecurity is a continuous process, not a one-time fix. By being proactive and informed, we can minimize the impact of potential breaches and protect ourselves in the digital world.

Ouaissou DEMBELE
Ouaissou DEMBELEhttps://cybercory.com
Ouaissou DEMBELE is an accomplished cybersecurity professional and the Editor-In-Chief of cybercory.com. He has over 10 years of experience in the field, with a particular focus on Ethical Hacking, Data Security & GRC. Currently, Ouaissou serves as the Co-founder & Chief Information Security Officer (CISO) at Saintynet, a leading provider of IT solutions and services. In this role, he is responsible for managing the company's cybersecurity strategy, ensuring compliance with relevant regulations, and identifying and mitigating potential threats, as well as helping the company customers for better & long term cybersecurity strategy. Prior to his work at Saintynet, Ouaissou held various positions in the IT industry, including as a consultant. He has also served as a speaker and trainer at industry conferences and events, sharing his expertise and insights with fellow professionals. Ouaissou holds a number of certifications in cybersecurity, including the Cisco Certified Network Professional - Security (CCNP Security) and the Certified Ethical Hacker (CEH), ITIL. With his wealth of experience and knowledge, Ouaissou is a valuable member of the cybercory team and a trusted advisor to clients seeking to enhance their cybersecurity posture.


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