IBM Systems magazine, IBM Z Nov/Dec 2020 - 19

Cyberresilience:
Moving Beyond
Cybersecurity
A successful resilience strategy stems from well-defined requirements
for high availability, continuous operations and continuous availability
By Karen E. Lewis // Photography by Matt Carr

I

n an always-on world, downtime
is expensive. Information Technology Intelligence Consulting
(ITIC) estimates that 40% of businesses lose between $1 million to
over $5 million per hour.1 Achieving
zero downtime can be challenging;
being always-on is under constant
threat from external and internal
risks. Externally, natural disasters
and cyberincidents serve as dangerous disruptors. Internally, maintenance windows are shrinking, and
inadvertent security breaches and
insider threats also affect enterprise
resilience. Avoiding downtime can
even be a deterrent to critical disaster recovery testing; shutting down
and restoring systems takes too long.

The Journey to
Cyberresilience
Michael Jordan, IBM Distinguished
Engineer, IBM Z® Security, defines
cyberresilience as "an organization's ability to continuously

deliver their intended outcome,
despite any cyberevents." Although
cybersecurity and cyberresilience
are linked, they're distinct: "Security focuses on information technology and controls around technology to protect data and systems;
cyberresilience takes a broader
view, although security is very
much a part of it," he adds. Cyberresilience assumes intrusions may,
in fact, get into your system, and a
cyberresilient infrastructure helps
you recover faster.
"For many clients, cyberresilience is a journey from initially
reducing unplanned outages, to
minimizing planned outage windows, and eventually, moving to an
always-on environment," suggests
Rebecca Gott, IBM Distinguished
Engineer for IBM Z and IBM
LinuxONE™. Gott believes the cornerstones of a successful resiliency
strategy stem from well-defined
requirements for high availability,

continuous operations and continuous availability.
High availability
The most basic resilience level, high availability, reflects an
organization's ability to provide
service during defined periods at
acceptable or agreed levels. At this
level, organizations mask unplanned outages from end users.
High availability characteristics
include fault tolerance, automated
failure detection, recovery, bypass, reconfiguration, testing, and
problem and change management.
Establishing well-defined requirements for high availability enables
reliability and can help reduce the
risk of component failures.
Continuous operations
The next level, continuous operations, indicates an organization
has introduced measures to enable
critical systems and processes to

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IBM Systems magazine, IBM Z Nov/Dec 2020

Table of Contents for the Digital Edition of IBM Systems magazine, IBM Z Nov/Dec 2020

Welcome: Helping clients thrive in an always-on world
Currents: Increased uptime reduces TCO for IBM Z clients
Currents: On the web
Currents: Celebrating 20 years of Linux on IBM Z
Currents: The new and improved Master the Mainframe
Features: Cyberresilience: Moving Beyond Cybersecurity: A successful resilience strategy stems from well-defined requirements for high availability, continuous operations and continuous availability
Features: Expanding Cloud Capabilities: Red Hat OpenShift can now run on IBM Z, IBM LinuxONE and IBM Power for an infrastructure-agnostic model
Techbits: Improve recovery time with IBM System Recovery Boost
Techbits: How to utilize IBM Safeguarded Copy
Techbits: Ask the expert: IBM Secure Execution
Beyond the Box: M&T Bank Senior Mainframe Security Engineer and IBM Champion Byron Smith promotes the mainframe through mentorship
IBM Systems magazine, IBM Z Nov/Dec 2020 - Intro
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover1
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover2
IBM Systems magazine, IBM Z Nov/Dec 2020 - 1
IBM Systems magazine, IBM Z Nov/Dec 2020 - 2
IBM Systems magazine, IBM Z Nov/Dec 2020 - 3
IBM Systems magazine, IBM Z Nov/Dec 2020 - 4
IBM Systems magazine, IBM Z Nov/Dec 2020 - 5
IBM Systems magazine, IBM Z Nov/Dec 2020 - Welcome: Helping clients thrive in an always-on world
IBM Systems magazine, IBM Z Nov/Dec 2020 - 7
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: On the web
IBM Systems magazine, IBM Z Nov/Dec 2020 - 9
IBM Systems magazine, IBM Z Nov/Dec 2020 - 10
IBM Systems magazine, IBM Z Nov/Dec 2020 - 11
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: Celebrating 20 years of Linux on IBM Z
IBM Systems magazine, IBM Z Nov/Dec 2020 - 13
IBM Systems magazine, IBM Z Nov/Dec 2020 - Currents: The new and improved Master the Mainframe
IBM Systems magazine, IBM Z Nov/Dec 2020 - 15
IBM Systems magazine, IBM Z Nov/Dec 2020 - 16
IBM Systems magazine, IBM Z Nov/Dec 2020 - 17
IBM Systems magazine, IBM Z Nov/Dec 2020 - Features: Cyberresilience: Moving Beyond Cybersecurity: A successful resilience strategy stems from well-defined requirements for high availability, continuous operations and continuous availability
IBM Systems magazine, IBM Z Nov/Dec 2020 - 19
IBM Systems magazine, IBM Z Nov/Dec 2020 - 20
IBM Systems magazine, IBM Z Nov/Dec 2020 - 21
IBM Systems magazine, IBM Z Nov/Dec 2020 - 22
IBM Systems magazine, IBM Z Nov/Dec 2020 - 23
IBM Systems magazine, IBM Z Nov/Dec 2020 - Features: Expanding Cloud Capabilities: Red Hat OpenShift can now run on IBM Z, IBM LinuxONE and IBM Power for an infrastructure-agnostic model
IBM Systems magazine, IBM Z Nov/Dec 2020 - 25
IBM Systems magazine, IBM Z Nov/Dec 2020 - 26
IBM Systems magazine, IBM Z Nov/Dec 2020 - 27
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: Improve recovery time with IBM System Recovery Boost
IBM Systems magazine, IBM Z Nov/Dec 2020 - 29
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: How to utilize IBM Safeguarded Copy
IBM Systems magazine, IBM Z Nov/Dec 2020 - Techbits: Ask the expert: IBM Secure Execution
IBM Systems magazine, IBM Z Nov/Dec 2020 - Beyond the Box: M&T Bank Senior Mainframe Security Engineer and IBM Champion Byron Smith promotes the mainframe through mentorship
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover3
IBM Systems magazine, IBM Z Nov/Dec 2020 - Cover4
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD1
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD2
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD1
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD2
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD3
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD4
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD5
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD6
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD7
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD8
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD9
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD10
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD11
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD12
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD13
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IBM Systems magazine, IBM Z Nov/Dec 2020 - SD15
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD16
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD17
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD18
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD19
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD20
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD21
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD22
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD23
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD24
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD25
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD26
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD27
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD28
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD29
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD30
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD31
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD32
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD33
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IBM Systems magazine, IBM Z Nov/Dec 2020 - SD35
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD36
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD39
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD40
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD41
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD42
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD43
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD44
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD45
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD46
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD47
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD48
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD49
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD50
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD51
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IBM Systems magazine, IBM Z Nov/Dec 2020 - SD53
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD54
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD55
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD56
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD3
IBM Systems magazine, IBM Z Nov/Dec 2020 - CoverSD4
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