G-P09 · TOPIC · identity-and-data-securityGCRI dossier · service level R0
GCRICybersecurity and Digital ResilienceIn development
Topic dossier · Cybersecurity and Digital Resilience

Identity and data security

Most intrusions involve stolen or misused credentials, and most harm involves data: stolen, encrypted, altered or exposed. Identity and access management, strong authentication, encryption and data minimisation are the core defences. This page sets out how identity and data are attacked, how they are protected, how breaches are measured, and what evidence serves the organizations and data protection authorities responsible.

01In brief

The short answer.

Identity and data security is the protection of who can access systems and of the information they hold. Most intrusions use stolen or misused credentials, privilege expands harm and copies of data spread, so phishing-resistant authentication, least privilege, encryption and data minimisation are core defences.

02Geography

Connected activity in Europe.

For identity and data security, in GCRI's spatial-intelligence reading, the map opens on true-colour imagery, night lights and population density with true colour from NASA GIBS, framed on Europe; every other NASA layer, live feed and forecast waits in the layer list.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 3

Connected activity, for this page

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

For identity and data security, in GCRI's spatial-intelligence reading, the map opens on true-colour imagery, night lights and population density with true colour from NASA GIBS, framed on Europe; every other NASA layer, live feed and forecast waits in the layer list.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · Copernicus Sentinel-2 L2A · NASA HLS S30Sources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • MODIS land products (vegetation indices, gross primary production, land cover), NASA LP DAAC and LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Observed (EO): Copernicus Sentinel-2 L2A (contains modified Copernicus Sentinel data 2026), Microsoft Planetary Computer
  • Observed (EO): NASA HLS S30 (contains modified Copernicus Sentinel data 2026). We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
  • Optional layers (35 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Land cover type (IGBP), yearly: MODIS Terra and Aqua land cover (MCD12Q1), NASA LP DAAC · 2024
  • Enhanced vegetation index, rolling 8 days: MODIS Terra EVI, NASA LANCE · 13 Oct 2026
  • Vegetation greenness (NDVI), rolling 8 days: MODIS Terra NDVI, NASA LANCE · 13 Oct 2026

03The question

Identity and data security: how the risk develops.

Authentication, authorization and privacy. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanism

Credentials are the main entry

Phishing, password reuse, stolen session tokens and credential stuffing let attackers log in rather than break in. Phishing-resistant authentication blocks many of these paths.

Mechanism

Privilege expands harm

Accounts with broad or standing privileges let attackers move laterally and reach sensitive data. Least privilege and just-in-time access limit the damage.

Mechanism

Data spreads beyond control

Copies of data accumulate in backups, analytics, test systems and third parties. Data that is not needed and not kept cannot be stolen.

Mechanism

Breaches harm people

Exposed personal data leads to fraud, identity theft, extortion and loss of trust, and the harm continues long after the breach.

04Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
Multi-factor authenticationAuthentication requiring two or more independent factors, such as a password and a device.
PasskeyA phishing-resistant credential based on FIDO standards that replaces passwords with cryptographic keys.
Data minimisationCollecting and keeping only the personal data needed for a stated purpose.
05Indicators

What is measured, and how well.

Each indicator carries its unit, its cadence, the kind of source behind it and the evidence label a value would carry. No values are shown: a programme supplies them under its own authority.

IndicatorUnitCadenceSource typeLabel
Accounts using phishing-resistant authenticationpercent of accountsmonthlyIdentity system reportsOBSERVED
Privileged accountscountmonthlyAccess management recordsOBSERVED
Personal data breaches notified to regulatorscountannualData protection authority statisticsOFFICIAL
Records exposed in breachescountper breachBreach notificationsREPORTED
Sensitive data encrypted at restpercent of data storesper assessmentSecurity assessmentsDECLARED
Credential exposure in breach datasetscount of organizational accountsmonthlyBreach monitoring servicesOBSERVED
06Canvas

From sources to decisions.

The topic as a computational graph: named sources feed the methods, an evidence review gates the outputs, and the decisions stay with the authorities that hold them.

Pipeline canvas · Identity and data security as a run graphDesign, not a record
Identity and data security: a public service over digital public infrastructureA person proves who they are, consents to share data, the agency exchanges data through agreed interfaces, pays through the switch, and any grievance is redressed; every step is auditable. Design of the process, not a record of a run.

Fig. 02Nodes carry their type, two metric rows and a state; connectors show what feeds what; dashed frames name the owners; the timeline is the cadence. Design of the pipeline, not a record of a run.

07Sources

Where the evidence comes from.

Named public datasets and institutional records, each with its licence class. Sources by agreement are used only under their terms and never republished.

SourceWhat it givesLicence class
Data protection authority annual reports and breach statisticsBreach notifications and enforcementPublic records, licence per authority
NIST Digital Identity Guidelines (SP 800-63)Requirements for identity proofing and authenticationPublic domain, US government
FIDO Alliance specificationsStandards for phishing-resistant authenticationPublic, FIDO terms
Have I Been PwnedAggregated data from public breaches for exposure checksFree service, terms of use
Verizon Data Breach Investigations ReportPatterns of credential use in breachesPublic report, Verizon terms
08Decisions

Who decides, and what the evidence serves.

Cybersecurity and Digital Resilience prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Who decidesThe questionEvidence this page serves
Organizations and their security teamsWhich authentication and access controls to adoptAuthentication reviews; privilege counts
Data protection authoritiesWhere to focus guidance and enforcementBreach statistics and trends
Product and service designersWhat data to collect and keepMinimisation methods

Outputs this topic produces

  • Authentication strength reviews
  • Privileged access reduction plans
  • Data inventory and minimisation methods
  • Breach trend analyses from regulator data
09Core questions

What experts ask.

As organizations move to cloud services and remote work, the network perimeter matters less and identity matters more. An attacker with valid credentials can often move through systems unnoticed. At the same time, organizations hold growing volumes of personal and sensitive data, and breaches expose people to fraud, discrimination and loss of privacy long after the incident.

  • How strongly are users, devices and services authenticated, and how resistant is that authentication to phishing and credential theft?
  • Are access rights limited to what each role needs, and are they reviewed and removed when no longer needed?
  • Where are sensitive data held, who can reach them and how are they protected at rest, in transit and in use?
  • How are privacy rights respected in the design and operation of security controls themselves?
10Mechanisms

Drivers and processes.

Identity and data risks arise from credentials, privileges and data flows.

Authentication

Proving identity

Passwords alone are weak. Phishing-resistant multi-factor methods, such as hardware keys and passkeys, greatly reduce account takeover.

Authorization

Limiting access

Least privilege and regular review limit what a compromised account can do. Excessive standing privileges are a common enabler of serious breaches.

Data protection

Safeguarding information

Encryption, data minimization and retention limits reduce what can be lost, and privacy-by-design keeps controls proportionate.

Identity has become the main target because it is the main key. Attackers increasingly bypass technical defences by tricking users, abusing password reset processes, stealing session tokens or exploiting service accounts with broad privileges that nobody reviews. Defences therefore combine strong authentication with careful management of privileges, monitoring of unusual behaviour and processes that make it easy to revoke access quickly.

11Methods and data

How the evidence is built, and its limits.

  1. 01

    Identity logs

    Sign-in and access logs show patterns of misuse. They need careful retention and privacy safeguards.

  2. 02

    Breach reports

    Public breach notifications and incident reviews show common failure modes, though reporting thresholds differ between jurisdictions.

  3. 03

    Cryptographic analysis

    Evaluation of encryption and authentication schemes, applying cybersecurity and cryptography. Implementation errors often matter more than algorithm strength.

  4. 04

    Usability research

    Studies of how people use authentication show where security measures are bypassed because they are hard to use.

12Methods

How it is studied, and what the methods cannot say.

  1. Cybersecurity and cryptographyControl baselines and gap analysis · Exploited vulnerability prioritisationApplied here
  2. Software and safety-critical systems engineeringSecure development life cycle · Safety and security co-assuranceApplied here
  3. Network science and contagionAttack path analysis · Digital dependency concentration · Coordination detectionApplied here
13Questions

Questions and answers.

What is phishing-resistant authentication?
Authentication that cannot be captured and replayed by a fake site, such as FIDO2 passkeys or hardware security keys, recommended by many national cyber agencies.
What is least privilege?
Giving each user or system only the access needed for its task, for only as long as needed, to limit what an attacker can do with a compromised account.
Do I have to report a data breach?
Many laws require organizations to notify regulators and affected people of personal data breaches that meet set thresholds. Requirements depend on jurisdiction.
What is zero trust?
An approach that grants access based on continuous verification of identity, device and context rather than on network location. It is a design approach, not a product.
Does security monitoring conflict with privacy?
It can. Proportionate monitoring, clear purposes, access controls on logs and retention limits help keep security measures compatible with privacy rights.
Does the platform handle personal data from breaches?
No. It works from published sources and aggregated evidence, and does not collect or process breached data.
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