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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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Illegal Content and the Blockchain

Schneier on Security

Security researchers have recently discovered a botnet with a novel defense against takedowns. Now the content-delivery network Akamai has reported on a new method: a botnet that uses the Bitcoin blockchain ledger. Now the content-delivery network Akamai has reported on a new method: a botnet that uses the Bitcoin blockchain ledger.

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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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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. ” reads a Dec.

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

IT Governance

IT Governance found more than 1,200 publicly disclosed security incidents in 2021 , which correlates to society’s increasingly reliance on computers and the expanding influence that criminal hackers have. Then there’s blockchain mining. This is no small matter. ISO 50001 and smarter energy use. Get started with ISO 50001.

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Conti Ransomware Group Diaries, Part IV: Cryptocrime

Krebs on Security

The candid messages revealed how Conti evaded law enforcement and intelligence agencies , what it was like on a typical day at the Conti office , and how Conti secured the digital weaponry used in their attacks. Before that, Jeffrey Ladish , an information security consultant based in Oakland, Calif., ” Stern wrote.