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Inside FactorX.ai Attachment: HTML smuggling with base64 encoded JavaScript function Defense Strategy

FactorX Team

April 16, 2025

6 min read

Related Threats

Vendor Email Compromise

Vendor Email Compromise

Mitigate risks from compromised accounts of trusted suppliers that may lead to supply chain fraud.

Safeguard Against Business Email Compromise (BEC)

Safeguard Against Business Email Compromise (BEC)

Prevent unauthorized access to executive communications and thwart impersonation attempts that could lead to financial loss.

Html smuggling

Base64 encoding

Phishing

Malware

Email security

Threat detection

Malware analysis

From Spotting Threats to Securing Messages

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Core Capabilities

Comprehensive security analysis powered by advanced AI

Comprehensive Email Threat Detection

FactorX.ai examines every aspect of an email—from sender reputation to content patterns—calculating an Attack Score that instantly communicates risk level. Our sophisticated analysis identifies even subtle threat indicators, presenting findings with clear verdicts (Safe, Suspicious, or Malicious) backed by detailed explanations of contributing signals.

Attack Score

Instant risk assessment algorithm for clear threat communication

Top Contributing Signals

Plain-language explanations of detected security issues

Sender Verification

Comprehensive reputation analysis and authentication checks

Social Engineering Detection

Identification of manipulation tactics and deception attempts

Resource

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