Designed for Modern Adversaries

AI-driven detection, response, and offensive testing — built to protect organizations and individuals where discretion matters.

Protecting Businesses From Today’s Most Critical Security Threats

Modern businesses face increasingly complex cyber risks. Sentry0 helps organizations identify vulnerabilities, prevent attacks, and secure sensitive data before damage occurs.

AI & LLM EXPOSURE

Prompt injection, jailbreak chains, RAG exploitation. We probe the way adversaries do, not the way scanners do.

EXECUTIVE EXPOSURE

Founders, principals, and family offices are now the target. We harden communications, devices, and digital footprints discreetly, end to end.

FRAGMENTED VISIBILITY

Hybrid cloud, autonomous agents, and distributed systems widen the attack surface. We close the gaps you can’t see.

UNALIGNED DEFENSE

Disconnected teams, unclear ownership, conflicting priorities — adversaries exploit the seams. We close them.

Advanced Security Solutions for Modern Digital Threats

AI / LLM SECURITY TESTING

Adversarial testing for AI systems and the infrastructure around them.

Key highlights:

AI/LLM penetration testing
RAG pipeline and vector database security
Agent tool misuse and autonomous action risks
Prompt injection, jailbreaks, and output manipulation
Aligned to OWASP LLM Top 10, MITRE ATLAS, and NIST AI RMF

Penetration Testing & Red Team Operations

Offensive security scoped to real adversaries and real consequences.

Key highlights:

vCISO

Executive-level security leadership, fractional or embedded.

Key highlights:

Security Awareness

Programs that change behavior, not just check a box.

Key highlights:

Sentry0 Security Core

Continuous protection against active threats.

Key highlights:

Threat intelligence
Authentication hardening
Email security and BEC defense
Incident response with defined SLAs
Executive and board-ready reporting
24/7 managed detection and response

Cybersecurity Consulting

Advisory for the decisions that shape your security, privacy, and exposure.

Key highlights:

Security architecture review and design guidance
Security program strategy and multi-year roadmaps
Privacy program design and cross-border data strategy
Custom advisory engagements scoped to your environment
Executive and principal digital footprint assessment and reduction
Compliance advisory: ISO 27001, NYDFS Part 500, CMMC, FINRA, SEC REG S-P, GDPR, NIST CSF & AI RMF, NIS 2

Where AI Meets Risk

We protect AI-native and high-growth organizations scaling in complex, threat-heavy landscapes.

AI Native

Companies building products with frontier AI models. We secure the model, the data, and the infrastructure around it as you scale.

Startups

Early-stage and founder-led teams that need security to keep pace with growth. We build programs that scale with the company without slowing it down.

Financial Services

Hedge funds, private equity and venture capital firms and their portfolio companies, asset managers, banks, and fintechs facing heavy regulatory scrutiny and persistent cyber threats. We support both sides from compliance to active defense.

Legal

Law firms where client confidentiality, privilege, and reputation are central to the business. We protect the systems, communications, and people behind every matter.

Family Offices

Single and multi-family offices managing the security and privacy needs of principals and their households. We provide discreet, end-to-end protection across digital and personal exposure.

Industrial & Manufacturing

Manufacturers and industrial operators where downtime carries real cost. We secure your environments and protect the systems that keep production running.

EU Exposure

Organizations with operations, customers, or data flows in the EU. We help you navigate GDPR, NIS 2, DORA, and the broader regulatory landscape.

Fine Art & Collections

Collectors, dealers, galleries, and auction houses. We protect the artwork, the records, and the privacy of the people who own them.

Executives & Principals

Senior leaders, founders, and public-facing individuals whose personal exposure carries professional consequence. We protect their devices, communications, online presence, and household connectivity.

Simple, Powerful Protection

Scope

We work with you to map your attack surface, business context, and regulatory exposure, shaping a security model focused on what matters most.

Testing & Findings

We simulate realistic adversary behavior, surface vulnerabilities, and prioritize findings by likely exploitability and potential impact.

Resolution & Coverage

We retest to validate remediation and support ongoing protection through our Sentry0 Security Core services.

Our Team

Sentry0 is composed of practitioners from Accenture, BlackRock, the U.S. Department of Defense, and the EU. Our work is informed by direct experience inside cybersecurity, regulated finance, defense, and critical infrastructure. We work as an extension of the teams we serve. When a client’s needs fall outside a standard engagement, we scope custom assessments, embedded advisory, and tailored programs designed around their environment and constraints.

Engage Directly With Us

Every message lands with our practitioners, and we respond with discretion.

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