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Incident Response Retainer

When an incident hits, the worst time to be negotiating a contract is at 2am while ransomware encrypts your environment. A pre-arranged incident response retainer gives you a defined SLA, a team that already knows your environment, and the ability to start responding inside an hour rather than spending a day onboarding a vendor.

RedSecLabs delivers IR retainers with a tiered standby model: contracted response SLA, pre-allocated hours, a dedicated lead with knowledge of your environment, and a clear runbook for the worst day. Between incidents, retained hours fund tabletop exercises, threat hunts, readiness reviews, and IR playbook refresh so the relationship stays warm.

Retainers run on a fixed-fee annual model with predictable cost. Unused hours convert to scheduled proactive work rather than disappearing, so the spend is never wasted.

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Just a few questions to scope your project. We respond the same business day.

✓ UK-based CREST member · ✓ QSA-aligned methodology · ✓ Same-day scoping response · ✓ Executive + technical reports · ✓ Retest included

IR Retainer, Quick Facts

Last reviewed: 2026-05-21
Engagement model
Pre-arranged annual retainer, fixed-fee, with contracted SLA
Response SLAs
30-minute (Enterprise tier), 1-hour (Core), 4-hour (Foundation)
What's included
Hours bank, named lead, quarterly tabletops, threat intelligence, regulator engagement
Common incidents
Ransomware, business email compromise, data exfiltration, web compromise
Regulatory support
ICO breach notification (UK), FCA, PRA, NCSC engagement included in Core+
No surprise fees
Hours bank covers most incidents; expansion negotiated up-front
1 hour
Response SLA
24/7
Standby coverage
CREST
Member company
Fixed-fee
Annual model

What is an IR retainer

An incident response retainer is a pre-arranged commercial agreement that establishes the response relationship before an incident occurs. It defines the response SLA, allocates a dedicated team, sets aside standby capacity, and confirms in advance the commercial and legal terms that would otherwise need to be negotiated under crisis-time pressure.

The operational difference between retainer and ad-hoc IR is significant. Ad-hoc engagement at the point of incident typically takes 24 to 72 hours from initial call to investigators actually starting work, depending on legal review, scope agreement, and team availability. With a retainer in place, that timeline compresses to within the contracted SLA, often inside an hour.

What an IR retainer delivers:

Defined response SLA (1 hour standard, 30 minutes for premium tiers)

Dedicated IR lead with environment familiarity

Pre-allocated retainer hours, predictable cost

Quarterly tabletop exercises included

Annual IR playbook review and refresh

Threat hunt or readiness assessment between incidents

Retainers scale from foundation-tier (single annual tabletop and standby SLA) through to enterprise-grade (named team, multiple proactive engagements per year, integrated threat intelligence). Tier selection is driven by your risk profile and regulatory exposure.

Why retainer rather than ad-hoc IR

The economics of incident response are unforgiving. Once an incident occurs, response cost is determined by how quickly investigators can be on the case. Every hour of delay multiplies blast radius, data exfiltrated, business hours lost, and ultimately the size of the remediation bill. Pre-arrangement collapses that delay to its minimum.

Regulated sectors particularly benefit. UK financial services firms under PRA SS2/21 are expected to have pre-arranged third-party support for severe incidents. DORA-in-scope EU firms face similar expectations under Article 11. Healthcare bodies covered by NIS Regulations are expected to demonstrate response readiness, not just capacity. A retainer is the simplest way to evidence that to a regulator.

Without a pre-arranged retainer, organisations face:

24 to 72 hour gap between incident and active investigation

Crisis-time contract negotiation with poor use

No vendor familiarity with your environment on day zero

Unbudgeted six-figure incident bills

Regulatory criticism for inadequate response arrangements

Cyber insurance claim friction over preferred-vendor disputes

An IR retainer is cheaper than a single significant incident, every time. It is not a question of whether the relationship pays back but of when.

Who should hold an IR retainer

IR retainers make sense for any organisation where downtime, data loss or regulatory consequences from a cyber incident would be material. In practice:

Banks and financial services

Healthcare and HealthTech

E-commerce above £10m turnover

SaaS and technology platforms

Government and public sector

Manufacturing and OT-heavy

Payment service providers

Organisations with cyber insurance

If your organisation has regulatory exposure, customer data at scale, or any cyber insurance policy, a pre-arranged IR retainer is the baseline of mature response capability.

How a retainer works in practice

Eight-stage retainer model, structured around the lifecycle of the relationship rather than a single incident. Most retainer hours are spent on proactive work; the standby and response capacity is there when needed.

01

Onboarding & Environment Discovery

On contract start, we conduct an environment review: network architecture, key systems, identity infrastructure, critical data locations, escalation contacts. This is the knowledge base that lets investigators move fast on day zero of an incident.

02

IR Playbook Review

We review your existing incident response playbook (or build one if absent), aligned to NIST CSF, NCSC guidance, and any regulatory frameworks that apply. Output is a runbook your team can actually follow under pressure.

03

Standby SLA

Contracted response SLA, typically 1 hour to first responder engagement, 30 minutes for premium tier. Out-of-hours numbers, pre-validated communication channels, and pre-approved engagement scope.

04

Quarterly Tabletop Exercise

Quarterly tabletop with your IR team and leadership, modelling realistic incident scenarios relevant to your sector. Identifies gaps in playbook, communication, and decision-making authority before they matter in a real incident.

05

Active Incident Response

When activated, the retained team responds within the contracted SLA. Investigation, containment, eradication, and recovery delivered to NIST SP 800-61 methodology. Forensic preservation included for any potential follow-up legal or regulatory action.

06

Communications & Reporting Support

Drafting support for board reporting, regulator notification (ICO, PRA, FCA, NCSC, sector-specific bodies), customer communications, and any required external reporting. Lawyer co-ordination where privileged.

07

Post-Incident Review

Within two weeks of any incident, a structured post-incident review identifying root cause, control gaps, playbook lessons, and a remediation plan. Delivered to your risk committee or board if needed.

08

Proactive Use of Retained Hours

In quiet periods, retained hours fund threat hunts, readiness reviews, IOC sweeps, or other proactive work. Unused hours are not wasted, they convert to value that keeps the security posture warm.

Retainer tiers below scale from foundation-level standby through to enterprise-grade response. All tiers are fixed-fee with no surprise invoices when an incident occurs.

Retainer tiers

Every retainer is fixed-fee, annual, with no per-incident charges within the included hours. Tier selection is driven by your risk profile, regulatory exposure, and how much proactive work you want included between incidents.

  • Contracted response SLA (1 hour standard, 30 minutes premium)
  • Dedicated IR lead with environment familiarity
  • Pre-allocated retained hours per year
  • Quarterly tabletop exercises
  • Annual IR playbook review and refresh
  • Threat intelligence integration for your sector
  • Regulator communication drafting support
  • Post-incident review and board-level reporting

Retainer tiers

Three retainer tiers, all fixed-fee annual. Most clients start with Core and scale to Enterprise as their risk profile or regulatory exposure grows.

Foundation

Baseline standby for organisations that need a defined response relationship in place.

  • 4-hour response SLA
  • Pre-allocated annual hours bank
  • Onboarding & environment review
  • IR playbook baseline review
  • Annual tabletop exercise
  • Email / phone activation channel
  • Post-incident debrief
  • Acquirer & insurer notification support
Most chosen

Core

Pre-arranged standby with active relationship between incidents. Most-chosen tier for mid-market and regulated firms.

  • 1-hour response SLA
  • Larger pre-allocated hours bank
  • Named IR lead with environment familiarity
  • Quarterly tabletop exercises
  • Annual IR playbook refresh
  • Threat intelligence integration for your sector
  • Regulator notification drafting (ICO / FCA / PRA / NCSC)
  • Board-level post-incident reporting

Enterprise

Premium standby for high-exposure environments, regulated firms, and organisations with cyber insurance preferred-vendor requirements.

  • 30-minute response SLA
  • Largest hours bank, additional priority hours
  • Dedicated named team, multiple senior leads
  • Quarterly tabletops plus annual large-scale exercise
  • Half-yearly threat hunts included
  • Embedded threat intelligence and sector ISAC integration
  • Pre-built regulator and insurer engagement runbook
  • Annual board-level resilience assessment

All tiers are fixed-fee annual. Scoping call confirms the right tier for your environment and exposure; quoted within 48 hours.

Industries We Serve

We deliver this service across these industries:

Financial Services
Healthcare
E-commerce & Retail
SaaS & Tech
Government
Manufacturing
Payments
Education

Why RedSecLabs for IR retainer

An IR retainer is a relationship more than a transaction. You are choosing the people who will be on the call at 2am when something goes badly wrong. We bring senior IR-specialist consultants only, real environment familiarity established during onboarding, and CREST-member methodology throughout. We do not subcontract retainer work and we do not staff incidents with junior consultants you have never met. Fixed-fee, predictable cost, real capacity behind the SLA.

CREST member company
1 hour standard SLA, 30 min premium
Senior IR consultants only
Pre-built environment familiarity
Unused hours convert to proactive work
24/7 standby with named team

Speak to an incident response specialist

Book a 30-minute scoping call. We will confirm the right retainer tier for your environment and quote a fixed annual fee within 48 hours.

Book a Scoping Call Contact Us

Where to next

Related services and industry packages worth exploring.

Red Team Assessment

Adversary simulation to test response readiness

Virtual CISO

Strategic security leadership between incidents

Vulnerability Assessment

Financial Services package

Frequently Asked Questions

Response SLA is the time between you activating the retainer and a first responder engaging on the incident: dialled in, looking at logs, beginning containment. Standard tier is 1 hour; premium tier compresses to 30 minutes. Full investigation team typically activates within 2 to 4 hours, with the lead responder engaged throughout.

They convert to proactive work scheduled in agreement with you, threat hunts, IOC sweeps, IR playbook refresh, additional tabletop scenarios, or readiness assessments. Hours are never wasted. Most retainer clients use 30 to 50 percent of hours on incidents in a typical year and the rest on proactive work.

No, included hours are pre-paid as part of the retainer fee. If a single incident exceeds your contracted hours, additional time is billed at agreed retainer rates (typically 20 to 30 percent below ad-hoc IR rates). Tier selection should size hours to your realistic worst-case incident.

Most cyber insurers are happy to recognise pre-arranged IR retainers, particularly those held with CREST-member firms. We work routinely with major UK cyber insurers and can engage directly with your insurance broker if needed to align retainer terms with your policy preferred-vendor arrangements.

Yes, in coordination with your legal counsel. We draft regulator notification text for ICO, PRA, FCA, NCSC, and sector-specific bodies; we work alongside privileged counsel where legal privilege is in force; and we participate in the post-incident regulatory engagement where required. We do not provide legal advice ourselves but we have worked extensively with the major UK cyber-specialist law firms.

Scoping is based on your environment size, sector, regulatory exposure, and target response SLA. Most retainers fall between £25k and £150k per year. We confirm fixed-fee scope within 48 hours of a scoping call. Multi-year retainers receive discounted rates and locked-in SLA pricing.
Before you decide
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A redacted RedSecLabs penetration test report. See the format, depth, and clarity your team will receive.
Talk to us
Book a scoping call →
A 30-minute call covers realistic effort, timeline, and a fixed-scope quote. CREST-aligned methodology, UK-based testers.
What you receive

Every engagement includes

  • ✓ Scoping call. A 30-minute call to define scope, timeline, and authorisation boundaries.
  • ✓ Test plan. Written test plan covering targets, methodology, and rules of engagement.
  • ✓ Technical report. Detailed findings with reproduction steps, evidence, and remediation guidance.
  • ✓ Executive summary. Board-ready summary with risk ratings and business impact.
  • ✓ Audit-ready evidence. Findings letter formatted for auditors, customers, and supervisory authorities.
  • ✓ Retest letter. Free retest of remediated findings within agreed window. Confirmation letter included.
  • ✓ Remediation call. A call with our lead tester to walk through findings and remediation strategy.
How we deliver

Our process, end to end

  1. 1
    Scoping call & fixed-scope quote
    A 30-minute call. We define scope, targets, timeline. You get a fixed-scope quote within one working day.
  2. 2
    Test plan & authorisation
    Written test plan covering methodology, targets, and rules of engagement.
  3. 3
    CREST-aligned execution
    Senior tester runs the engagement. Critical findings flagged immediately during testing.
  4. 4
    Technical + executive report
    Detailed technical findings with reproduction steps. Board-ready executive summary.
  5. 5
    Remediation call & retest
    Walkthrough with our lead tester. Retest of remediated findings within the agreed window.
Engagement scope

What shapes the quote

Small scope
Focused scope, smaller surface. 5-7 working days.
Medium scope
Multi-role, several integrations. 8-12 working days.
Enterprise scope
Complex environment, compliance evidence. 12-25 working days.
Fixed-scope quote within 1 working day
No surprise invoices. We commit to a number before you commit to us.
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