Many criminal groups have very effectively taken over many email accounts, at least 156 high-ranking officers in various companies in Germany, Great Britain, the Netherlands, Hong Kong, and Singapore. A new cyberattack campaign called ‘PerSwaysion,’ which used shared Microsoft files – Sway, SharePoint, and OneNote to conduct phishing attacks.

https://thehackernews.com/2020/04/targeted-phishing-attacks-successfully.html