A Kaspersky Lab report on Thursday said an especially potent Nigerian Business Email Compromise campaign has stolen sensitive data from over 500 companies in 50 countries.

Researchers have neutralized the latest strain of the Jaff ransomware, releasing a decryption tool for unlocking files.

DHS and the FBI warned that North Korean attackers are targeting U.S. businesses with malware- and botnet-related attacks that are part of concerted effort dubbed “Hidden Cobra.”

Kaspersky Lab said it has seen some of the first exploits targeting a patched Samba vulnerability, and those are being used to mine Monero cryptocurrency.

Researchers at Kaspersky Lab have found a number of programming errors in the WannaCry ransomware code that put file recovery within reach of sysadmins.

Researchers urge Windows admins to apply MS17-010 before the next attack using the EternalBlue NSA exploit deploys a worse payload than WannaCry ransomware.

Experts have confirmed there are similarities between code used by the ransomware WannaCry and the Lazarus APT.

Microsoft has taken the extraordinary step of providing an emergency update for unsupported Windows XP and Windows 8 machines in the wake of Friday’s WannaCry ransomware outbreak.

Attackers behind today’s WannaCry ransomware outbreak in Europe are spreading the malware using the EternalBlue exploit leaked by the ShadowBrokers.

A member of law enforcement acknowledged at SOURCE Boston that the lack of communication around ransomware remains a serious problem.