Quick method to sniff the data left on a Linux VM in the public cloud

VM disks in public cloud may be shared by customers. This is privacy problem. Is there a quick method to sniff the data left on a Linux VM?

One possible method:

# dd if=/dev/xvda bs=1M | strings -n 100 > strings.txt

Using the dd and strings which are pervasive on Linux systems.

Answered by anonymous.

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