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

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    Data theft is of greater security severity than a data breach because accessed data is already in transit.
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    To prevent data exfiltration, malicious access must be intercepted before privilege escalation at the latest.
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    Next-generation firewalls, an SIEM, and a Zero Trust Architecture could prevent data exfiltration.
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