https://blog.wongcw.com/2021/05/16/%e5%8b%92%e7%b4%a2%e8%bb%9f%e4%bb%b6%e7%88%86%e7%82%b8%e5%bc%8f%e5%a2%9e%e9%95%b7%e5%8e%bb%e5%b9%b4%e5%83%b9%e5%80%bc%e8%b6%854%e5%84%84%e7%be%8e%e5%85%83%e5%8a%a0%e5%af%86%e8%b2%a8%e5%b9%a3%e7%94%a8/
勒索軟件爆炸式增長去年價值超4億美元加密貨幣用於支付贖金