Covert communication refers to the transmission of information in a hidden or disguised manner, often to evade detection by monitoring systems. In the context of digital assets, this can involve embedding messages within transaction metadata, using steganography in unrelated files, or employing encrypted channels that appear as benign network traffic. The objective is to convey data without revealing its existence or content to external observers. Such methods are typically employed for privacy or illicit activities.
Context
News related to regulatory scrutiny of cryptocurrency transactions or efforts to combat financial crime frequently discusses the challenges posed by covert communication methods. A key debate surrounds the balance between user privacy and the need for transparency in preventing illicit financial flows. Future developments in blockchain analytics and forensic tools continuously work to identify and analyze these hidden data streams.
This novel on-chain exfiltration vector encodes BIP-39 mnemonics into Sui transaction recipient addresses, bypassing all conventional network monitoring.
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