GCRI · Technology

Spatial intelligenceObservations, models and their uncertainty in one view

Cybersecurity and cryptography

Cybersecurity and cryptography protect information systems and data from unauthorised access, disruption and manipulation. They address threats that can spread rapidly across interconnected digital and physical systems. Cybersecurity and Digital Resilience stewards this page for the Nexus Consortium.

02The method

What cybersecurity and cryptography covers.

  1. 01

    Core methods

    threat modelling; vulnerability assessment; penetration testing; intrusion detection; cryptographic protocol design; incident response.

  2. 02

    Data and instruments

    security event logs; vulnerability databases; threat intelligence feeds; network traffic captures; incident reports.

  3. 03

    Validation

    Controls are tested through red-team exercises, audits and formal analysis of cryptographic schemes. Incident data are used to check whether defences performed as intended.

  4. 04

    Limits

    Adversaries adapt, so historical data may not reflect future attacks. Software supply chains and legacy systems introduce weaknesses that are hard to inventory.

  5. 05

    Use in risk decisions

    Cybersecurity analysis identifies how a single compromise can propagate across sectors that share software, vendors or networks. It informs resilience requirements and cyber insurance.

03Reference practice

Cybersecurity practice is codified in management standards and shared threat knowledge.

ReferenceWhat it sets
NIST CSF 2.0Govern, identify, protect, detect, respond, recover
ISO/IEC 27001Information security management
MITRE ATT&CKAdversary tactics and techniques
NIST post-quantum standardsMigration of public-key cryptography
04In systemic risk work

Accumulation across organisations.

Organisations manage their own cyber risk; systemic cyber risk comes from shared software, providers and protocols. Accumulation scenarios (a cloud outage, a widely exploited vulnerability) estimate how many organisations fail together, which is what insurers, supervisors and operators of critical services need to know.

  • Map shared dependencies across organisations.
  • Model correlated outage scenarios, not independent incidents.
  • Plan cryptographic migration ahead of need.
  • Applications on Cyber and Digital Resilience and Quantum.
06Stewardship

Who maintains this page.

Cybersecurity and Digital Resilience stewards cybersecurity and cryptography: it keeps this description current and reviews how the method is applied across the platforms.

07Sources

Where this page's references lead.

The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.

09Questions

Questions and answers.

Why does one institution host every method page?
GCRI hosts the STEM Commons so that each method has one canonical description. Platforms link to it rather than repeat it, which keeps definitions consistent.
How do I suggest a correction to a method page?
Write to integrity@therisk.global with the passage and the reason.
NRNexus Reports gateway · GW-GCRI

Contribute to Nexus Reports from this page.

Nexus Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

GCRI
The Global Centre for Risk and Innovation

Bring a method, a dataset or a question.

The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.

Legal

Maps, data and figures on this site are shown for context and general information. They are not advice, forecasts or warnings; the limits of the information are set out in the Disclaimers and Data Notices.

Have questions?