Symantec demonstrated how cryptojacking malware overheats hardware to a point of lessening their useful service life. The malicious activity can make a low power device use more electricity than it normally will consume, increasing the level of wear and tear compared to regular use. Virus authors have implemented a clever idea of developing malware enables them to mine cryptocurrency using the victims hardware. This is in sharp contrast to Ransomware, another money-making scheme of virus authors, as it encrypts user files for a ransom.”]
Source: https://hackercombat.com/the-story-behind-the-frying-of-an-egg-on-a-router/