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DETECTION OVERVIEW

Unusual Sensitive Data Transfer

Risk Factors

Attackers frequently seek sensitive data that is easy to steal and can be transferred without advanced tools or techniques. After sensitive data is successfully exfiltrated outside of the network, there can be significant negative effects on the reputation and revenue of an organization.

The system might change the risk score for this detection.

Kill Chain

Actions on Objective

Risk Score

83

Detection diagram
Next in Actions on Objective: VPN Client Data Exfiltration

Attack Background

Attackers often target valuable data to steal, such as social security numbers or credit card numbers. Data exfiltration is the transfer of valuable data to unauthorized users outside of the network over protocols such as HTTP.

Mitigation Options

Implement strict rules for outbound traffic on devices that contain sensitive data
Implement strict audit controls that log every action taken on the document
Establish a security policy that directs employees to refrain from establishing unencrypted connections to websites, especially when submitting sensitive data to a website
Audit web server configurations to confirm that TLS and HTTP Strict Transport Security (HSTS) are enabled and set up properly
Make sure clients are configured to transmit sensitive data over encrypted connections

MITRE ATT&CK ID

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