“Wannacry” was a recent ransomware attack that victimized hundreds of thousands of merchants globally. It exploited a vulnerability in Microsoft operating systems, which has since been resolved although the malware continues to spread through retailers systems via two methods:
- The ransomware is disguised as an email attachment, which attacks the system when a user opens and downloads it.
- A worm on a system that was already infected looks for other systems vulnerable to the attack and targets them.
The effects of this attack were devastating for the infected merchants in terms of financial loss, reduced consumer trust and the loss of confidential data. All merchants, whether or not they were targets of the attack, can benefit from adopting security measures and best practices to protect their sensitive information and bolster their systems against potential threats in the future.