Users noticed a cryptocurrency miner surfaced on The Pirate Bay, the worlds largest torrenting for a day over the weekend. It turns out that TPB was experimenting with Coin Hive which is described as a JavaScript miner for the Monero blockchain that you can embed in your website. Users run the miner directly in their Browser and mine XMR for you in turn for an ad-free experience, in-game currency or whatever incentives you can come up with. TPB tried to get rid of all the ads but also need money to keep the site running.”]
Source: https://securityaffairs.co/wordpress/63165/security/pirate-bay-monero-mining.html