Cybersecurity services & dedicated engineers

Protect Your Applications, Data, and Business Operations

Identify security weaknesses, strengthen your systems, and prepare for incidents with practical cybersecurity services and dedicated engineers working alongside your team.

02Security challenges we help you address

Start with the problem you need to solve

Your next security engagement should have a clear purpose. Choose the situation that best describes your needs and explore the relevant service.

Colleagues discussing a plan around a laptop at a meeting table

Start with one concern

You can begin with one application, environment, workflow, or clearly defined security concern.

Discuss Your Security Requirements

A defined project, dedicated capacity, or ongoing improvement.

Start with a defined assessment, bring in specialist engineering capacity, or build an ongoing programme of security improvements around your priorities.

An engagement can combine these models. Staffing, operating coverage, emergency response, and independent assurance are separate commitments that must be expressly scoped.

Choose how you work with Nestack

  1. 01

    Scoped security assessment

    Examine agreed systems or workflows and receive documented findings, prioritised recommendations, and a clear next-step plan. Define scope, access, test conditions, deliverables, and retesting arrangements before work begins.

  2. 02

    Dedicated security engineer

    Add capacity for an agreed technical role, work backlog, schedule, and reporting relationship. Your engineer collaborates with your developers, IT team, security provider, and accountable business owners.

  3. 03

    Ongoing security improvement

    Maintain a planned cycle of access reviews, configuration checks, approved remediation, retesting, and progress reporting. Agree the recurring activities, coverage hours, escalation routes, and responsibilities.

04Cybersecurity risk assessment and governance

Understand your exposure and decide what to improve first

Security decisions become easier when systems, responsibilities, and business dependencies are visible.

We help your team review the current position and build a practical improvement plan around the services and information that matter most.

What we cover

  1. 01

    Asset and dependency mapping

    Identify agreed applications, environments, information flows, suppliers, and business owners.

  2. 02

    Exposure review

    Examine selected internet-facing assets and existing security findings within authorised boundaries.

  3. 03

    Control assessment

    Evaluate relevant access, configuration, protection, detection, and recovery arrangements.

  4. 04

    Governance and ownership

    Clarify security responsibilities, exceptions, approval routes, and risk decisions.

  5. 05

    Third-party dependencies

    Review supplier access, available evidence, handover arrangements, and escalation contacts.

  6. 06

    Assurance readiness

    Map evidence and gaps to requirements selected with your responsible business and assurance advisers.

05Application, API and mobile security testing

Find weaknesses in the systems your customers and teams use

Assess how selected applications handle access, information, and sensitive workflows. Combine suitable automated checks with scoped manual investigation, then help your developers understand and address the findings.

06Cloud, infrastructure and workplace security

Strengthen the environments supporting everyday operations

07Identity, access and data protection

Give people and integrations the access their work requires

Understand who can reach sensitive information and which identities can change important systems. Review human access alongside service accounts, application integrations, credentials, and shared information paths.

08Secure development and software supply chain

Build security into development and release workflows

Help your engineering team address weaknesses throughout delivery. Connect design decisions, code changes, dependencies, pipeline permissions, and release evidence to a manageable security backlog.

  • 01Threat modellingSelected system boundaries, sensitive actions, trust assumptions, and design risks.
  • 02Code reviewAgreed security-sensitive code paths and findings from suitable analysis tools.
  • 03DependenciesSelected component risks, support status, provenance evidence, and remediation ownership.
  • 04Secrets and build accessCredentials, repositories, pipeline identities, and approval protections.
  • 05Release controlsBuild-to-release traceability, artefact access, deployment authority, and change records.
  • 06Engineering follow-throughPrioritise fixes, retest changes, and improve repeatable verification, including AI-assisted code.

09 · AI application and agent security

Control the information and actions available to AI systems

AI applications can connect user requests, business information, tools, and consequential actions. Assess those connections and help your team establish clear permissions, approval boundaries, and repeatable security checks.

Security testing does not establish universal resistance to attacks, factual accuracy, fairness, or suitability for high-impact decisions. Define the tested model, tools, configurations, and scenarios.

What we cover

  1. 01

    Untrusted inputs

    Agreed prompt-injection scenarios involving messages, documents, retrieved content, or tool responses.

  2. 02

    Data access

    Sensitive-information exposure, retrieval permissions, and separation between users or customers.

  3. 03

    Tool authority

    Connectors, credentials, available actions, and unnecessary or inherited permissions.

  4. 04

    Human approval

    Gates for consequential actions and the scope of delegated authority.

  5. 05

    Output and execution handling

    How generated content is passed to applications, tools, or other agents.

  6. 06

    Monitoring and limits

    Action records, resource controls, failure handling, and repeatable regression checks.

10Security monitoring and detection engineering

Make important security events easier to investigate

Improve the information your team receives when something suspicious happens. Review available logs, detection coverage, alert quality, and the procedures that connect an event to an accountable responder.

Detection engineering does not automatically include continuous alert monitoring, a staffed SOC, or emergency response. Agree these services and hours separately.

What we cover

  • 01

    Log-source selection

    Relevant identity, application, cloud, endpoint, and network events in the agreed scope.

  • 02

    Collection quality

    Event availability, timestamps, permissions, retention, and gaps in useful context.

  • 03

    Detection rules

    Agreed use cases developed or improved against known system behaviour and priorities.

  • 04

    Alert tuning

    Noisy or duplicated alerts reviewed, with the effect of proposed adjustments documented.

  • 05

    Investigation procedures

    Initial checks, evidence handling, escalation routes, and ownership.

  • 06

    Coverage verification

    Agreed scenarios exercised, documenting what is detected, missed, or dependent on further work.

11Incident readiness and recovery

Prepare your team to respond and restore important services

12Hire a dedicated security engineer

Add Security Expertise to Your Team

Bring a security engineer into your workflow with a defined role, an agreed backlog, and clear reporting. Match the engagement to the expertise you need: application security, cloud security, identity, secure development, detection engineering, or AI security, subject to verified availability.

01What your engineer can work on

  • Investigate and prioritise security findings
  • Review agreed configurations, permissions, code paths, or detection controls
  • Coordinate approved fixes with developers, IT teams, and providers
  • Retest improvements and maintain clear evidence

02How the engineer works with your team

  • Agree responsibilities, working hours, overlap, and escalation contacts
  • Use customer-approved accounts, environments, and collaboration channels
  • Follow testing authorisations, change procedures, and data-handling arrangements
  • Involve specialist owners when work falls outside the agreed role

03How you see progress

  • A maintained work backlog with priorities and owners
  • Completed work and verified retest results
  • Open risks, exceptions, dependencies, and decisions needed
  • Agreed reports and review meetings with your team
Discuss a Dedicated Security Engineer

One engineer does not replace every security specialism or provide continuous coverage. Confirm the technical profile, support arrangements, and service commitments before engagement.

A smiling engineer with folded arms

13How an engagement works and what you receive

Clear scope, practical work, and visible progress

  1. 01Define scope

    Agree the business objective, systems, access, test conditions, responsibilities, exclusions, and outputs.

  2. 02Assess

    Review evidence and perform authorised technical work, documenting findings and limitations.

  3. 03Prioritise

    Agree the work sequence, owners, dependencies, and verification criteria.

  4. 04Implement approved improvements

    Coordinate or perform the changes included in scope through the customer's change process.

  5. 05Verify and report

    Retest agreed changes, record unresolved issues, and establish appropriate follow-up.

Tangible outputs

Depending on scope, your engagement can include:

  • Assessment report
  • Risk register
  • Remediation backlog
  • Configuration or access-review record
  • Playbook
  • Exercise report
  • Retest summary

Agree the required deliverables before work starts.

Each finding should explain what was observed, why it matters, what action is proposed, and how an agreed change will be checked.

14Why trust Nestack with security work?

Know who is doing the work and how it will be handled

Discuss the engineer profile, scope, delivery process, and evidence you need before approving an engagement. Establish confidentiality, authorised access, communication, escalation, and handover arrangements that fit your organisation.

Working with an India-based team

Plan time-zone overlap, approved remote access, data locations, storage and transfer restrictions, and customer oversight before work begins. Where physical access, restricted data, or specialist facilities are required, establish a suitable delivery arrangement as part of scoping.

  • 01

    Relevant expertise

    Agree the technical experience and role required for your systems and priorities.

  • 02

    Defined methods

    Identify the assessment approach, applicable references, test boundaries, and deliverables.

  • 03

    Controlled access

    Agree named identities, approved environments, permissions, and access-removal procedures.

  • 04

    Visible evidence

    Review findings, remediation records, and agreed retest outcomes through the engagement.

  • 05

    Accountable collaboration

    Identify customer owners, decision routes, and the responsibilities of other providers.

  • 06

    Practical handover

    Agree what records, recommendations, and access closures will be completed at the end.

Ask for relevant profiles and approved examples of deliverables during scoping. Confirm the evidence available for your intended service.

15Cybersecurity for your industry

Explore security priorities in your operating environment

Our general services can be scoped around the systems, information, and workflows in your industry. Explore the relevant industry page for more specific examples and engagement considerations.

Healthcare and life sciences

Clinical and research information, connected systems, and product-development environments.

Financial and professional services

Client records, transaction authority, business platforms, and external service providers.

Manufacturing and industrial operations

Engineering information, production dependencies, supplier access, and operational constraints.

Retail and consumer businesses

Customer accounts, commerce integrations, payment workflows, and supply-chain information.

Education and service organisations

User access, shared platforms, sensitive records, and continuity of everyday services.

Other industries

Explore the industry pages for relevant systems, workflows, and examples.

Specific obligations and delivery arrangements depend on your organisation, systems, locations, and agreed scope.

16Frequently asked questions

Frequently asked questions

Showing 19 of 19 questions

  1. Yes. A defined starting scope can focus on one application, environment, workflow, or security concern. Agree dependencies, access, exclusions, and expected outputs before work begins.

  2. An assessment can examine architecture, configurations, controls, responsibilities, and evidence. Penetration testing investigates exploitable weaknesses in an authorised technical scope. The appropriate approach depends on your objective.

  3. No. Scanning can identify useful findings, but may not establish business-logic weaknesses, complex access problems, or the real impact of a finding. Define the manual investigation needed for your systems.

  4. Implementation can be included where the required expertise, access, and approvals are agreed. Separate findings, proposed changes, approved work, and verification so responsibilities remain clear.

  5. Agree retesting in the engagement scope, including the affected findings, environments, timing, and number of verification cycles. Retesting does not automatically cover unrelated new changes.

  6. Yes, subject to an agreed technical profile and verified availability. Define the work backlog, hours, supervision, reporting, and escalation arrangements before the engagement starts.

  7. Yes. Agree responsibilities, access, change ownership, information sharing, and escalation routes. The engagement can support an existing security programme or address a defined capacity gap.

  8. Do not assume that. Application testing, cloud engineering, governance, industrial systems, and incident response can require different specialists. Match the engagement to the expertise and coverage needed.

  9. Agree the approved accounts, environments, permissions, authentication, evidence storage, and access period. Use customer-approved routes and record access removal at handover.

  10. Many activities can be scoped for approved remote access. Data restrictions, contracts, system ownership, physical requirements, and local obligations can affect delivery. Confirm suitable arrangements before access is granted.

  11. An agreed assessment can examine data access, prompt-injection scenarios, tool permissions, action approvals, output handling, and logging. Record the configurations and scenarios tested and their limitations.

  12. Not automatically. Coverage hours, alert ownership, staffing, escalation, and response commitments require a separate agreement. A dedicated engineer or detection-engineering project does not imply a continuously staffed SOC.

  13. Confirm current availability and an expressly agreed response scope before relying on emergency support. Planned readiness services are separate from urgent investigation, containment, and recovery engagements.

  14. Work can include organising technical evidence, identifying gaps, and supporting remediation for agreed requirements. The organisation's responsible owners approve responses; formal audits and certifications require the appropriate independent parties.

  15. No. Security work addresses a defined scope and provides evidence for improvement. Legal applicability, assurance conclusions, and risk acceptance remain with the appropriate responsible parties.

  16. Agree environments, permissions, test methods, operational limits, stop conditions, and change windows in advance. Some techniques may need a separate test environment or additional approvals.

  17. Scope, system complexity, access readiness, manual testing needs, required expertise, deliverables, operating constraints, and retesting arrangements influence the proposal. Establish these before committing to a schedule or fee.

  18. Review priorities, allocate owners, agree implementation responsibilities, and plan verification. Dedicated engineering or recurring improvement work can be scoped if further support is needed.

  19. Describe your organisation, the systems or workflow involved, your main concern, and whether you need an assessment or engineering support. Do not submit passwords, credentials, sensitive records, or detailed incident evidence when you get in touch.

Contact

Discuss your
security priorities.

Tell us what you need to protect, what concerns you most, and whether you need a defined assessment or ongoing engineering support. We will help establish an appropriate scope and next step.

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Open times

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Do not submit passwords, access credentials, sensitive records, or detailed incident evidence. An enquiry does not establish emergency-response coverage or a service commitment.We will use the details you provide to respond to your enquiry. Read our Privacy Statement.