IBM Systems magazine, IBM Z Nov/Dec 2020 - 20

"Only IBM delivers unique multilayered
mainframe storage solutions deeply integrated
with end-to-end cyberresilience and massive
scalability for IBM Z environments."
-Michael Jordan, IBM Distinguished Engineer, IBM Z Security

Cyberresilience in a Hybrid
Multicloud Environment
Disruptive cyberevents caused by
malicious external sources, insider abuse, vulnerabilities, glitches
and human error happen, despite
the best-laid plans. When an event
occurs, a cyberresilient system
tries to contain an attack and then
prevent its impact from cascading
into broader failures.

Continuously delivering outcomes through cyberevents poses
new challenges in hybrid multicloud environments. Hybrid
multicloud environments include a
mix of on-premise and cloud-based
applications, platforms and data
stores. These data, applications and
platforms are connected through
layers of supply chain and ecosystems, and the data is accessed and
shared across these layers.
"Complexity increases dramatically in a hybrid multicloud
environment," notes Jordan. "First,
instead of an application or system
residing within an enterprise, organizations run parts of that application on-premise and in the cloud,
making the attack surface considerably larger. Second, organizations
need to ensure their data can be securely consumed in these different
places. Finally, the introduction of
a shared security model throws up
many gray areas."
In a shared security model, a
cloud consumer is responsible for
some aspects of security, and the
cloud service provider for others.
"As a cloud consumer, it can be difficult to tell where your responsibility begins and ends; you don't want
to take for granted that security is
being provided," Jordan adds.

End-to-End Cyberresilience
Achieving cyberresilience requires
capabilities that span cybersecurity,

continuous availability, business
continuity and the recovery of enterprise data and applications to ensure
they function before, during and after any cyberincidents, outages, and
planned and unplanned downtime. 
"Taking a multidimensional
approach, employing methods of
keeping data confidential, preserving the integrity of data and systems, and ensuring the availability
of core systems and data will help
reduce the impact of unexpected
downtime," explains Gott. In an
always-on world, fundamental
tenets in a cyberresilient strategy
are confidentiality, integrity and
availability: C-I-A.
C: Keep data CONFIDENTIAL
Perpetrators of cyberattacks can be
internal and external. Stealing, ransoming and destroying data is a risk
to organizations of any size. A bad
actor with insider knowledge and
elevated system access can be more
dangerous than a malware infection. 
Human error happens, too; poorly
administered systems and improper
security settings create vulnerabilities. A recent Ponemon Institute
report found inadvertent breaches
from human error and system glitches were the root cause for nearly half
of the data breaches studied.2
Pervasive encryption helps protect data on-premise and in public
clouds. In addition to the hardware,
IBM Z offers features for access

PHOTOGRAPHY BY BILL BERNSTEIN

operate throughout unplanned
and planned outages continuously. Resilience attributes include
nondisruptive hardware and
software changes, nondisruptive configuration and software
co-existence. Continuous operations can help reduce the risk and
impact of service outages.
 
Continuous availability
The third stage of the journey to
cyberresilience is continuous
availability. Organizations requiring continuous availability need
to deliver nondisruptive service
to the end user, 24-7, 365 days
a year, with zero tolerance for
planned or unplanned outages.
Continuous availability includes
all of the characteristics of high
availability plus continuous operations; it's of the utmost importance in cyberresilience. With
continuous availability, organizations can recover and restore
services very quickly.

20 | NOVEMBER/DECEMBER 2020 IBMSYSTEMSMAG.COM

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10/13/20 1:27 PM


http://www.IBMSYSTEMSMAG.COM

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
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD14
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
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD34
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
IBM Systems magazine, IBM Z Nov/Dec 2020 - SD52
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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