Last Saturday the Cybersecurity and Infrastructure Security Agency issued an urgent warning that threat actors are actively exploiting three Microsoft Exchange vulnerabilities—CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207. These vulnerabilities can be chained together to remotely execute arbitrary code on a vulnerable machine. This set of Exchange vulnerabilities is often grouped under the name ProxyShell. Fixes were available…

IT security practitioners spend a lot of time strategizing ransomware defense, but many know little about the criminals plotting attacks. Who is the person behind a devastating ransomware campaign? Why did they choose a specific target? What about cybercrime appeals to them? To better understand the attacker’s perspective, Cisco Talos researchers interviewed a LockBit ransomware…