We use Debian GNU/Linux operating system almost exclusively and we try to use Free and Open Source Software wherever possible. We do this because when compared to some proprietary systems we believe this is more reliable, allows us a higher level of control and customisation and is typically regarded as less susceptible to attack by malware like viruses and "trojans".
The overwhelming majority of viruses and other "malware" can only attack proprietary systems like Microsoft Windows. Although malware threats do of course exist which can target other operating systems including Debian GNU/Linux they are far less common, hence we believe that using these systems reduces the risk of compromise. We use antivirus software on all of our systems and run daily scans and updates. We regularly update our software to ensure that it remains secure.
Some 3rd party websites and software providers require the use of proprietary systems and do not provide us with any alternative. In order to use these services for our clients whilst minimising risk we run them within "virtual machines" - essentially we run a computer within a computer. This lets us do two things - firstly we can control exactly what information the proprietary systems have access to, and secondly when we've finished using them we can completely shut them down and switch back to Debian.
More information about Debian can be found here: www.debian.org
Get Safe Online
If you would like to know more about computer and internet safety, we'd recommend "Get Safe Online" which is the UK’s national internet security awareness campaign for the general public, micro and small businesses. It is a joint initiative between HM government, the Serious Organised Crime Agency (SOCA), and private sector sponsors from the worlds of technology, retail and finance.
The campaign website www.getsafeonline.org is the definitive source of free, unbiased, current information and advice about how to keep safe and secure online.