Exfiltration aims to steal sensitive data from a target system without being detected. This can be done by using various techniques, including:
-Malware is used to create a backdoor into the target system and then transfer data through that backdoor.
-A network sniffer captures data as it travels across the network. the
-Data is transferred to a remote system using a covert channel, such as steganography or tunneling. -Data is copied from the target system onto removable media, such as USB drives or DVDs.
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