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- “Exfiltration Techniques That Bypass Your DLP”
“Exfiltration Techniques That Bypass Your DLP”
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Chunked Uploads Evade Size-Based Rules
Attackers break large files into small, encrypted pieces. These fragments bypass DLP size limits and content scanning. Full payloads reassemble outside your network.
Exfil Over Cloud Drives Looks Like Normal Use
Google Drive, OneDrive, Dropbox — all used daily by employees. Exfiltrating data through these apps blends with real traffic. Endpoint controls miss browser-based transfers.
DNS, ICMP, and Covert Channels Slip Through the Cracks
Data leaves your network through unexpected protocols like DNS queries or pings. These paths go unmonitored. The quieter the channel, the less likely it’s flagged.
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Print, Scan, and Screenshot Are Still Unmonitored
Data leaves via paper too. Employees print sensitive files, take screenshots, or photograph screens. DLP doesn’t catch analog exfiltration — and attackers know it.
Encrypted Zip Files Blind the Scanner
Zipped files with strong passwords pass through email or cloud services without inspection. If the content is encrypted, your tools can’t inspect or block it.
Personal backup tools like iCloud, MEGA, or Sync.com run silently in the background. They sync folders without alerts. Employees or insiders can walk out with gigabytes undetected.
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