05 · Security

Cybersecurity

Security advisory grounded in actual risk, not checkbox compliance.

What this is

Security work that comes through Calloc isn’t a vendor scan with a report attached. We assess the security program as it actually operates, design improvements that fit the operator’s reality, and translate technical risk into language that boards, investors, and regulators can act on.

The work

  • Security posture assessmentA gap analysis covering identity, data, network, endpoint, application, and supply chain. Findings ranked by exploit likelihood and business impact, not just control coverage.
  • Fractional CISO and security leadershipEmbedded security leadership for organizations between security hires or who don’t need a full-time CISO yet. See the Fractional Leadership practice for engagement structure.
  • Cyber diligence for investorsPre-investment cyber assessment, either as a standalone engagement or integrated into the Technology and AI Diligence practice.
  • Incident response readinessTabletop exercises, runbook review, communication plans, and the legal and PR coordination paths that need to exist before they are needed.
  • Compliance program designSOC 2, ISO 27001, HIPAA, and sector-specific frameworks. Designed to fit the operator’s actual operations, not to maximize auditor billable hours.
  • Board-level risk reportingThe artifacts directors need to discharge their duties on cyber risk without having to become security experts.

When this fits

  • Companies pursuing or maintaining a compliance certification.
  • Portfolio companies needing post-close cyber assessment.
  • Organizations between security hires.
  • Pre-sale preparation when a buyer will diligence cyber posture.
  • Boards needing independent cyber risk reporting.

How it’s structured

  • Assessment engagements run as two to four week sprints with fixed scope and fixed fee.
  • Fractional CISO engagements run on a month-to-month retainer with a three-month minimum.
  • Diligence work integrates with the Technology and AI Diligence practice.
  • NDA available on request.

Have a security question with board-level implications?

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Related practices

01

Fractional Leadership

Embedded CTO, CIO, CAIO, CISO, or CPO seats held with full operational responsibility.

02

Technology & AI Diligence

Pre-investment and post-close technical review for PE, VC, and angel investors.

04

Enterprise Architecture

Cross-system design for organizations whose technology has accreted faster than it was planned.