Cyber Primer

Cyber functions
levels, they protect critical networks and systems that reside in the sea, land,
air and space environments. Such control is likely to be localised in terms of
time and space, and will be reliant on the quality of information assurance.
Control of equity in cyberspace depends on available resources and the level
of risk that can be tolerated. Defensive cyber operations are enduring and
non-discretionary.
3.6. Security. The National Security Strategy and Strategic Defence and
Security Review 2015 makes it clear that the opportunities presented by
cyberspace have also introduced new vulnerabilities. Security, both
individual and collective, is therefore an overarching principle in cyber
operations. A lapse in security can affect our resilience, awareness and
destroy the trust of our partners. The link with operations security is critical
as actions in cyberspace may take place over a prolonged period and any
compromise could undermine years of effort. Within the cyber environment,
everyone must apply judgement, take responsibility for their actions,
understand regulations and respond to possible breaches in a timely fashion.
The scale of damage that even one person can cause is illustrated by the
Edward Snowden case. 38
3.7. Resilience. Dependence on the cyber environment dictates that
Defence, commercial entities/contractors and our partners, must withstand
or recover rapidly from difficult conditions. Defence must also deliver those
capabilities and actions that are essential to operations.
resilience
The ability of the community, services or infrastructure to withstand the
consequences of an incident.
(JDP 02, Operations in the UK: The Defence Contribution to Resilience, 2nd
Edition)
cyber resilience
The ability of an organisation or platform to withstand and/or recover
from malicious events in cyberspace.
38 More detail of which can be found at Annex 2A on page 44.
Cyber Primer (2nd Edition) 55