Malicious advertisements on major websites lead to ransomware

http://www.pcworld.com/article/2360820/malicious-advertisements-on-major-websites-lead-to-ransomware.html

 

"Malicious advertisements on domains belonging to Disney, Facebook, The Guardiannewspaper and others are leading people to malware that encrypts a computer’s files until a ransom is paid, Cisco Systems has found."