Intelligent CISO Issue 06 | Page 95

HTML5 has also created a thriving ecosystem of browser extensions that improve the user experience. Thousands of extensions are available for Chrome, Firefox, Edge and other HTML5 browsers. With extensions, users don’t install full-blown software components on their devices. Instead, extensions install directly in the browser, typically enhancing the browser interface rather than introducing an additional UI. In turn, end users can install and use extensions on their own, without IT support. Browser endpoint challenges With browsers at the centre of so much corporate activity, they are now subject to many of the same challenges that face desktops, smart phones and other hardware-based endpoints. The first challenge concerns leaking sensitive corporate data. For example, many end www.intelligentciso.com | Issue 06 users wind up using the same browser – on the same computer – for personal and professional purposes. Personal email, banking and shopping are just a few of the unauthorised applications that can compromise sensitive enterprise data as well as personal information. Typically, such applications aren’t monitored and don’t meet corporate security standards and data is subject to loss or theft as a result. Second, the number of surface attacks grows along with the number of extensions users install in their browsers. Those extensions can read all the data exchanged between the device’s browser and the back-end server. While end users think the extensions are secure, they can leave users and their companies at risk of cryptojacking, ransomware, phishing and other malware attacks that target one computer and then spread to other systems in the corporate network. Finally, most companies are going to manage a hybrid application environment that combines HTML5 and legacy technologies. Not every enterprise application is going to move to the cloud immediately. Rebuilding and redeploying apps takes a lot of time. For many organisations, both types of applications will be used at the same time. That’s just a fact of corporate life. Take Windows 10, for example. It launched in 2015 and Windows 7 still plays a critical role in the enterprise. It’s worth pointing out that, when it comes to browsers, ‘legacy technologies’ includes HTML4. The majority of the enterprise web applications use HTML4 technology, which hasn’t changed much over the 95