Mining cryptocurrencies is a great way to earn small amounts of residual income (that could possibly be worth much more in the future). This is becoming an alternative revenue source some websites (and people with more nefarious intentions) are banking on.

Salon.com, for example, is giving readers the option to opt out of advertisements in exchange for letting the site use their CPUs to mine Monero, a cryptocurrency that's easier to mine than Bitcoin and has a current market cap of $4.6 billion.

Of course, where there's room for a legitimate way to earn money, corruption is soon to follow.

https://www.cnet.com/how-to/how-to-stop-sites-from-using-your-cpu-to-mine-coins

Small and medium sized businesses are being warned to take note as a company which suffered a cyber attack is fined £60,000 by the Information Commissioner’s Office (ICO).

An investigation by the ICO found Berkshire-based Boomerang Video Ltd failed to take basic steps to stop its website being attacked.

https://ico.org.uk/about-the-ico/news-and-events/news-and-blogs/2017/06/warning-to-smes-as-firm-hit-by-cyber-attack-fined-60-000/