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Illegal Content and the Blockchain

Schneier on Security

Now the content-delivery network Akamai has reported on a new method: a botnet that uses the Bitcoin blockchain ledger. Since the blockchain is globally accessible and hard to take down, the botnet’s operators appear to be safe. What if someone puts illegal material in the blockchain? That’s how the system works.

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A Cryptomining botnet abuses Bitcoin blockchain transactions as C2 backup mechanism

Security Affairs

Crooks are exploiting BTC blockchain transactions to hide backup command-and-control (C2) server addresses for a cryptomining botnet. Security experts from Akamai have spotted a new botnet used for illicit cryptocurrency mining activities that are abusing Bitcoin (BTC) transactions to implement a backup mechanism for C2.

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GUEST ESSAY: Tapping Bitcoin’s security — to put a stop to ‘51% attacks’ of cryptocurrency exchanges

The Last Watchdog

However, these attacks aren’t due to exchange security flaws; malicious actors are exploiting the underlying consensus protocols of blockchains themselves. Every blockchain uses a consensus protocol which allows all nodes on the network to agree on the current state of the blockchain.

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North Korea Is Now Mining Crypto to Launder Its Stolen Loot

WIRED Threat Level

A spy group working for the Kim regime has been feeding stolen coins into crypto mining services in an effort to throw tracers off their trail.

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Norton 360 Now Comes With a Cryptominer

Krebs on Security

Norton 360 , one of the most popular antivirus products on the market today, has installed a cryptocurrency mining program on its customers’ computers. According to the FAQ posted on its site , “ Norton Crypto ” will mine Ethereum (ETH) cryptocurrency while the customer’s computer is idle.

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Glupteba botnet is back after Google disrupted it in December 2021

Security Affairs

The blockchain-enabled botnet has been active since at least 2011, researchers estimated that the Glupteba botnet was composed of more than 1 million Windows PCs around the world as of December 2021. The Glupteba botnet is back, researchers reported a surge in infection worldwide after Google disrupted its operation in 2021.

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Cyber Security’s Impact on Climate Change: What Can Organisations Do?

IT Governance

Then there’s blockchain mining. In the early days of bitcoin mining, individuals could create new bitcoins using a standard computer set-up, but the process has grown so complex that it now requires a room full of specialised tools. Most obviously, cyber crime by its nature involves the use of computers, which consume energy.