The suite is already available for Android and Apple devices.
The company, which listed on Aim in December 2015, said Defenx Cloud Backup is also now available and further expands the product portfolio.
The cloud-based product offers online backup, synchronisation and sharing of files across multiple mobile and desktop devices. The suite of features, such as online-only access to free-up memory/disk space, unlimited version history and selective backup, is not available on many other competing products, Defenx said.
"These exciting new product launches illustrate our commitment to becoming the leading provider of mobile security software solutions across all operating systems. Following the launch of our Windows Phone 10 product, the Defenx Mobile Security suite is now available on over 90% of smartphone platforms," said Andrea Stecconi, chief executive of Defenx plc.
The shares, which floated at 148p, rose 1.5p to 126p on the announcement.