The tactic is so effective, it has spawned a multitude of sub-methods, including smishing (phishing via SMS), pharming, and the technique du jour for this blog: spear phishing. In 2019, the stats leaning heavily towards the tactic speak for the day. Payouts of $40 million and even $70 million are common, and thats before you get to get to the cost of the cleanup and class lawsuits. For victims, the slightest piece of information can bring about an organisation downfall as it slices through all its security defences.”]
Source: https://blog.malwarebytes.com/social-engineering/2020/01/spear-phishing-101-what-you-need-to-know/