This doesn't have to be so. Security only damages usability when users must vault the hurdles; invisible decisions made for their benefit only improves the overall experience. Remembering the username and password details for your favourite website is frustrating, and although the security rationale is clear, we still resent the five-second delay whilst we enter our credentials. In contrast, TLS/SSL simply works in the background. Through using a web browser with a host of certificates, simply visiting a HTTPS website sets off a flurry of invisible protocol traffic which results in a secure session. The average user requires no knowledge of how the system works, or even that anything is happening; most are simply reassured by the "lock icon" at the bottom of their screens. By reducing the cognitive workload for the user, customers gain the ability to buy products and manage their finances online; a situation that would be impossible without this technology.
This presents how cybersecurity can be an enabler rather than simply a barrier. I was reminded of this myself several days ago when I registered for a free trial of an online streaming service. Unfortunately, it appeared that Silverlight was required to play movies and so, against my best judgment, I downloaded the software to watch a few films. Being slightly knowledgeable of cybersecurity matters, I am well aware of the dangers that come through such plug-ins, whether they be Java, Flash, or a host of similar technologies. Less than two days later whilst casually browsing the news, my browser begins bringing up random websites, thankfully most blocked by anti-virus software which detected malware on the page. One lapse is all it took: in looking for convenience, I had sacrificed security.
This is why developments such as HTML5 are so important. People resent downloading software, keeping it updated and managing it along with the other five plug-ins that other sites require. Although heterogeneity can be beneficial in some situations, the fragmentation of the media player market led to a proliferation of tools required for basic web use, many with less-than-perfect security records. HTML5 looks to change this. People aren't required to keep any software updated - it just works. Security is improved by removing the dependence on vulnerable applications, and usability is enhanced by reducing user workload.
Whilst risks still exist for HTML5 - it is no silver bullet, technology never is - solutions which marry usability and security should be encouraged if we wish to be both productive and safe in cyberspace.