A sophisticated Microsoft Exchange server backdoor gives hackers access to incoming and outgoing email. They would be able to intercept, redirect, and modify emails as well as send messages on behalf of the compromised victims.
The sustained prevalence of brand impersonation in phishing attacks is further demonstrated in a new report which listed the most impersonated brands in the first quarter of 2019.
A new ransomware dubbed MegaCortex has been targeting business networks across the world. The sudden surge in activity was noted by cybersecurity firms and researchers, and further investigation shows how complex this particular ransomware is.