Microsoft, assorted security researchers, and the US Federal Government are all warning that assailants are actively exploiting zero-day vulnerabilities in Exchange email servers to deliver ransomware.Credit: AppleInsiderMicrosoft on Thursday said that it had detected a new family of ransomware dubbed, DoejoCrypt.A or DearCry, being delivered via Exchange vulnerabilities. The attacks are using the same four vulnerabilities that were previously linked to Chinese-backed hacking group Hafnium. When chained together, the vulnerabilities allow an attacker to take full control of a compromised system.Read more