Cybersecurity consulting

Security decisions that start with your actual threats.

Lion Sec helps growing technology companies establish which attacks are realistic against their systems, what those attacks would reach, and which fixes come first. Fixed scope, fixed duration, and every recommendation traced back to a specific attack path.

Discuss your security challenge See the engagements

Fixed scope and duration
No production access required
Executive and technical reporting

Who it is for

Built for companies looking for the right first step toward stronger, practical security.

Lion Sec works with companies worldwide that have outgrown informal security but have not yet built a dedicated security function.

You are growing faster than your security practices

Your team, infrastructure, products, or sensitive data are expanding, but security still relies on informal processes, accumulated controls, or a few key individuals.

You know security needs investment, but not what should come first

You have a security budget, your first security engineer, or management support — but lack a clear understanding of the most important risks and where to focus resources first.

Something changed your risk landscape

You experienced an incident or near miss, saw a serious attack against a peer, or are introducing major architectural changes, new infrastructure, integrations, or sensitive data flows.

External stakeholders are raising the bar

Enterprise customers, partners, auditors, or insurers are asking increasingly difficult questions about your security, architecture, or incident response capabilities.

Engagements

Three engagements. One question each.

Every engagement answers a question a technical leader is already asking, and ends with a prioritized 90-day roadmap in which each recommendation maps to a specific attack scenario or response gap.

External Threat & Attack Surface Assessment

“Why would an attacker target us, what would they see from the outside, and what should we fix first?”

You have a security budget and no reliable way to decide what it should buy first.

Executive Threat Brief for management
3–7 prioritized attack scenarios with evidence and confidence levels
90-day security roadmap mapped to those scenarios

Outcome Prioritized attack scenarios backed by evidence, and a 90-day roadmap that says what to fix and why.

10 business days

Threat Modeling as a Service

“What are the most realistic attack paths in our architecture, and which design changes remove the most risk?”

Your team knows how the system is supposed to work, but not how it would be attacked.

Outcome A threat model of your architecture, the attack paths it allows, and the design changes that close them.

10 business days

Incident Readiness Assessment

“If a serious security incident happens tomorrow, what will actually happen in the first four hours?”

You have security tooling and capable engineers, but no agreed way for them to work together under time pressure.

Outcome A response model built around your organization: roles, severity, escalation, playbooks and the gaps to close first.

10–15 business days

Compare all three engagements

Approach

Real Security First

Security recommendations should start with the threats that are actually relevant to your organization — not with a checklist written for a company that is not yours.

01 Relevant threats Who would attack you, and with what motive.
02 Actual risk What those attacks would reach and cost.
03 Security decisions Which controls remove that risk.
04 Prioritized actions What gets done first, and why.

What that means in practice

Findings are written as attack scenarios, not as isolated observations.
Every recommendation names the scenario or gap it addresses.
Priorities follow risk reduction and implementation effort, not framework order.
Evidence, confidence levels and assumptions are stated explicitly.

This is not an argument against standards

ISO 27001, SOC 2, NIST 800-53 and CIS Controls are useful, and Lion Sec works with them regularly. The difference is the order of reasoning: your threat model decides which controls matter first and why they exist, and the framework provides the vocabulary for describing them.

How Lion Sec works

Credibility

The approach comes from responding to real attacks.

Lev Mordvinkov Cybersecurity Professional and Security Incident Commander

Lion Sec was founded by Lev Mordvinkov, a cybersecurity professional whose work spans security engineering, threat modeling, infrastructure security, and incident response in fintech and crypto environments.

He has led the response to real security incidents, including sophisticated attacks involving activity attributed to established APT groups; assessed cloud, Kubernetes, CI/CD, and infrastructure-as-code environments for realistic attack paths; and built security controls, detection capabilities, vulnerability management processes, and incident response practices around the risks identified.

That experience is where Real Security First comes from: understand how a company can realistically be attacked, then prioritize the work that reduces meaningful risk.

Read the full background

Mission

Make security accessible for everyone.

Threat modeling, attack path analysis and incident command are normally available only to organizations large enough to employ a security team. Everyone else is left with generic checklists and the hope that they apply.

Lion Sec exists to make that work available at a smaller scale: the same analysis, written so that a company of forty people can buy it, understand it and act on it.

Next step

Start with a conversation, not a proposal.

Tell Lion Sec what worries you about your current security position. If an engagement is the right answer, you will hear which one and why. If it is not, you will hear that too.

Book an introductory call Browse the engagements hello@lion-sec.com