- 30 May 2017
- Posted by: Danielle Donaldson
- Category: Cyber Security
The NHS (among many others globally) was affected by an outbreak of malware last Friday causing widespread problems and a frenzy of media coverage.
The facts you should know about this malware:
- The malware is called “Wanna Cry”
- It is a type of “ransomware” which encrypts the files of infected machines to extort money from the victi
- Only machines with Windows 8 or below are potentially vulnerable (Windows 8.1 and Windows 10 are not)
- Microsoft released a patch for the vulnerabilty used by the malware to spread from one machine to another on 14th March 2017
- Apple Macs are not affected
- The malware in its current form has been stopped by researchers who were able to invoke a kill switch built into the malware itself
- Variants of the malware may appear on the internet this week
What your IT team should be doing
- Making sure that servers and workstations routinely patched at least monthly
- The protocol (SMB version 1) which the malware uses to spread itself should be disabled where possible
- Ensuring antivirus is installed and up to date on all machines
What you can do to protect your business from Wannacry?
Restart your PC – Updates and patches require a reboot to take effect and regular reboots ensure they are applied.
- Phishing emails are the most common way of getting past IT security so as always, exercise caution:
- Do not open attachments from unknown recipients
- Do not click links from unknown recipients
- Be aware of spoofing – faked emails which appear to come from someone you know
- Delete anything suspicious
If you think your business has experienced a cyber attack, contact Cubit Technology to find out more.