Protect Yourself from Malware
4 free and easy-to-implement tips that can help prevent malware damaging your organisation.
4 free and easy-to-implement tips that can help prevent malware damaging your organisation.
Malicious software (also known as ‘malware’) is software or web content that can harm your organisation, such as the recent WannaCry outbreak. The most well-known form of malware is viruses, which are self-copying programs that infect legitimate software.
This section contains 5 free and easy-to-implement tips that can help prevent malware damaging your organisation.
Antivirus software – which is often included for free within popular operating systems – should be used on all computers and laptops. For your office equipment, you can pretty much click ‘enable’, and you’re instantly safer. Smartphones and tablets might require a different approach and if configured in accordance with the NCSC’s EUD guidance, separate antivirus software might not be necessary.
You should only download apps for mobile phones and tablets from manufacturer-approved stores (like Google Play or Apple App Store). These apps are checked to provide a certain level of protection from malware that might cause harm. You should prevent staff from downloading third party apps from unknown vendors/sources, as these will not have been checked.
Staff accounts should only have enough access required to perform their role, with extra permissions (i.e. for administrators) only given to those who need it. When administrative accounts are created, they should only be used for that specific task, with standard user accounts used for general work.
For all your IT equipment (so tablets, smartphones, laptops and PCs), make sure that the software and firmware is always kept up to date with the latest versions from software developers, hardware suppliers and vendors. Applying these updates (a process known as patching) is one of the most important things you can do to improve security – the IT version of eating your fruit and veg. Operating systems, programmes, phones and apps should all be set to ‘automatically update’ wherever this is an option.
At some point, these updates will no longer be available (as the product reaches the end of its supported life), at which point you should consider replacing it with a modern alternative. For more information on applying updates, refer to the NCSC’s guidance on Vulnerability Management.
We all know how tempting it is to use USB drives or memory cards to transfer files between organisations and people. However, it only takes a single cavalier user to inadvertently plug in an infected stick (such as a USB drive containing malware) to devastate the whole organisation.
When drives and cards are openly shared, it becomes hard to track what they contain, where they’ve been, and who has used them. You can reduce the likelihood of infection by:
Make these directives part of your company policy to prevent your organisation being exposed to unnecessary risks. You can also ask staff to transfer files using alternative means (such as by email or cloud storage), rather than via USB.
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