Ransomware - mitigation advice
- Make sure your security software patches are up to date. This particular ransomware variant exploits a vulnerability that Microsoft fixed in this patch.
- Make sure that you are running up-to-date anti-virus software.
- Back up your data somewhere else (and store it in a location that is not connected to your main computer system). You can’t be held to ransom if the data is available from another place – this is your best protection from ransomware. Are you sure that your backups are working? A regular restore from backup must be done to check that your backups are working.
- First hover on the link with your mouse pointer, and look at where the link is taking you.
- Take a second to think. Any link or attachment that is not from within your practice or immediate network, or a recognised friend, should not to be clicked. When in doubt, either call or email (in a separate email) your friend or the organisation asking them to confirm that the email is legitimate.
- Only click if you’re sure it’s safe
- Digital Health Cyber Security Centre – for ransomware mitigation advice
- ACSC- details of the WannaCry ransomware attacks can be found in the ‘news’ section of the ACSC Website
- Stay Smart Online – update regarding the WannaCry global ransomware incident
- Microsoft Guidance – specific guidance for Microsoft customers
Author David Glance
- Back up computers. This doesn’t protect a computer from an attack, it merely renders an attack ineffective because it is easy to re-install the system from a backup.
- Don’t click on links in emails unless you are expecting the email to contain a link. If you don’t know, double check with the sender. Equally, if you open a document and it asks to run macros, just say no. Avoid putting people into this situation in the first place by not sending links unless you have agreed prior to sending the email.
- Always update systems and software with the latest security updates. Better still, set the system to automatically do this on your behalf.
- Use antivirus software to protect systems.
- If infected, disconnect the computer from the network so that other computers are not infected.