Using secure messaging, voice and collaboration apps

With ‘hybrid working’ (a combination of working from home and the office) now a way of life for many, the NCSC is frequently asked if the various ‘secure voice and messaging’ apps available from Google Play or the Apple App Store are suitable. The NCSC has already provided some security guidance on choosing video conferencing services, so in this blog we’re providing advice on messaging, voice and collaboration apps.

There are too many (literally hundreds) for the NCSC to review, and we don’t comment on even the most common apps, such as Zoom, Signal and WhatsApp. What we can do is provide some risk management advice on what organisations should think about before choosing and using such apps for use on ‘corporately provisioned and managed’ devices.

Our preferred route to help risk owners to understand the implications of using secure voice and messaging apps, is by using our recently published Secure Communications Principles. We’d also add that we’ve provided guidance for organisations looking to use, deploy, and understand the risks of adopting a range of popular Software as a Service (SaaS) applications. This guidance will help you assess SaaS applications that could provide the secure solution you need.

Original Source: ncsc[.]gov[.]uk

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