The WannaCry ransomware is unique in that in can infect networked PCs using a file share vulnerability in Microsoft operating systems. The vulnerability was patched on March 14 2017, so to mitigate against infection you need to check that recommended Windows updates are installed.
How to check for Windows updates:
Windows 10, 8.1
Press Windows Key > Type Settings > open Settings and click Update & Security
Click Check for Updates > install recommended updates
In Start, open Control Panel > (View by: Small icons) Windows Update > Check for updates
- Please ensure you backup SalesPartner regularly.
- Be suspicious of email attachments.
For more information read: https://www.symantec.com/connect/blogs/what-you-need-know-about-wannacry-ransomware