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What is Cryptojacking?

Context:

‘Cryptojacking’ attacks on computer systems have gone up by 30% to 66.7 million in the first half of 2022 compared to the first half of last year, according to a report by SonicWall, a US-based cybersecurity firm.

Relevance:

GS III: Science and Technology

Dimensions of the Article:

  1. What is cryptojacking?
  2. Why is cryptojacking done?
  3. Why have cryptojacking incidents gone up?
  4. Why should this be a concern?

What is cryptojacking?

  • Cryptojacking is a cyber attack wherein a computing device is hijacked and controlled by the attacker, and its resources are used to illicitly mine cryptocurrency.
  • In most cases, the malicious programme is installed when the user clicks on an unsafe link, or visits an infected website — and unknowingly provides access to their Internet-connected device.

Why is cryptojacking done?

  • Coin mining is a legitimate, competitive process used to release new crypto coins into circulation or to verify new transactions.
  • It involves solving complex computational problems to generate blocks of verified transactions that get added to the blockchain.
  • The reward for the first miner who successfully manages to update the crypto ledger through this route is crypto coins.
  • But the race to crack this 64-digit hexadecimal number code needs considerable computing power involving state-of-the-art hardware, and electrical power to keep the systems involved up and running.
  • Cryptojackers co-opt devices, servers, and cloud infrastructure, and use their resources for mining. The use of ‘stolen’ or cryptojacked resources slashes the cost involved in mining.

Why have cryptojacking incidents gone up?

  • According to the SonicWall’s Cyber Threat Report, the crackdown on ransomware attacks is forcing cybercriminals to look for alternative methods.
  • Cryptojacking involves “lower risk”, and promises “potentially higher payday”.
    • Unlike ransomware, which announces its presence and relies heavily on communication with victims, cryptojacking can succeed without the victim ever being aware of it.

Why should this be a concern?

  • Cryptojacking is hard to detect and the victims of these attacks mostly remain unaware that their systems have been compromised.
  • Some telltale signs are the device slowing down, heating up, or the battery getting drained faster than usual.
  • Apart from individuals, businesses too are on the target list of cryptojackers.
  • According to the report, cryptojacking incidents targeting the retail industry rose by 63% year-to-date, while similar attacks on the financial industry skyrocketed 269%.
  • The primary impact of cryptojacking is performance-related, though it can also increase costs for the individuals and businesses affected because coin mining uses high levels of electricity and computing power.

-Source: Indian Express


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