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Bitcoin mining is the processing of transactions in the digital currency system, in which the records of current Bitcoin transactions, known as a blocks, are added to the record of past transactions, known as the block chain. A Bitcoin is defined by the digitally signed record of its transactions, starting with its creation. The block is an encrypted hash proof of work, created in a compute-intensive process. Miners use software that accesses their processing capacity to solve transaction-related algorithms.
In return, they are awarded a certain number of Bitcoins per block. The block chain prevents attempts to spend a Bitcoin more than once -- otherwise the digital currency could be counterfeited by copy and paste. Originally, Bitcoin mining was conducted on the CPU s of individual computers, with more cores and greater speed resulting in more profitability.
After that, the system became dominated by multi- graphics card systems, then field-programmable gate arrays FPGAs and finally application-specific integrated circuits ASICs , in the attempt to find more hashes with less electrical power usage. Due to this constant escalation, it has become hard for prospective new miners to start. This adjustable difficulty is an intentional mechanism created to prevent inflation. To get around that problem, individuals often work in mining pools.
Bitcoin generally started with individuals and small organizations mining. At that time, start-up could be enabled by a single high-end gaming system. Now, however, larger mining organizations might spend tens of thousands on one high-performance, specialized computer.
In the malware world, one of the more prevalent current threats is mining botnet infections, in which user systems mine for Bitcoin without the owners' knowledge and funds are channeled to the botnet master. By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States.
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Home Topics Security Malware Bitcoin mining. This was last updated in October Related Terms cross-site scripting XSS Cross-site scripting XSS is a type of injection security attack in which an attacker injects data, such as a malicious script, Add My Comment Register. Login Forgot your password? Submit your e-mail address below. We'll send you an email containing your password. Your password has been sent to: Please create a username to comment.
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