LONDON,ENGLAND – MARCH 21: (Editors note: The email address has been pixelated) In this photo illustration a spam ‘Phishing’ email is displayed on a laptop screen on March 21,2022 in London,England. (Photo by Peter Dazeley/Getty Images)
A view of Mimecast’s North American offices. The email security provider said a “sophisticated threat actor” had breached its software certificate (Mimecast/Wikimedia Commons).