Cybercriminals don't take holidays: How bad actors use this two-step phishing campaign to weaponize out-of-office replies
The Egress Threat Intelligence team has detected an 83.6% increase in scouting phishing emails between May 1st – June 30, 2023, compared with March 1st – April 30th, 2023. These emails aim to identify organizations’ and individuals’ personal time off (PTO) patterns or other absences from work through the automatic out-of-office responses they receive. The scouting attacks were sent from multiple spoofed email addresses from servers located in Russia and Japan.