What is Data Exfiltration

Data exfiltration, in the context of a cyberattack, is the malicious transfer of sensitive information from a compromised system to remote cybercriminal servers.

Key takeaways

  • Check icon
    Data theft is of greater security severity than a data breach because accessed data is already in transit.
  • Check icon
    To prevent data exfiltration, malicious access must be intercepted before privilege escalation at the latest.
  • Check icon
    Next-generation firewalls, an SIEM, and a Zero Trust Architecture could prevent data exfiltration.
  • Check icon
  • Check icon
Reviewed by
No items found.
UpGuard customer support teamUpGuard customer support teamUpGuard customer support team

See UpGuard In Action

Book a free, personalized onboarding call with one of our cybersecurity experts.

More from our blog

Learn more about the latest issues in cybersecurity.
Deliver icon

Sign up for our newsletter

Stay up-to-date on everything UpGuard with our monthly newsletter, full of product updates, company highlights, free cybersecurity resources, and more.
Free instant security score

How secure is your organization?

Request a free cybersecurity report to discover key risks on your website, email, network, and brand.
  • Check icon
    Instant insights you can act on immediately
  • Check icon
    Hundreds of risk factors including email security, SSL, DNS health, open ports and common vulnerabilities
Website Security scan resultsWebsite Security scan rating