The Model Context Protocol is becoming the connective tissue between AI agents and real systems — and every MCP server is new attack surface. We treat these integrations as hostile-facing services, for Cyprus companies wiring tools into agents.
We hunt confused-deputy paths, over-scoped credentials and tool-poisoning that let an attacker driving an agent reach far beyond its intended capability.
What we test
- MCP server & tool abuse
- Tool schema tampering & poisoning
- Confused-deputy & privilege paths
- Credential scope & secret leakage
- Untrusted tool-output injection
- Authentication & transport security
Common vulnerabilities we uncover
- Over-scoped tool permissions and credentials
- Confused-deputy privilege escalation
- Tool schema tampering and tool poisoning
- Untrusted tool-output injection
- Secret and credential leakage through tools
- Weak authentication and transport security
How we run your MCP Server & Tool-Chain Security Testing
- Kick-off & scoping. A short call to agree goals, in-scope assets and rules of engagement, so your mcp server & tool-chain security testing is safe, authorised and aimed at your real business risk.
- Mapping & discovery. Before touching anything we map the full attack surface in scope, so nothing exploitable slips through.
- Hands-on testing. Cyprus-based specialists exploit and chain weaknesses manually — the flaws scanners walk straight past — to show genuine impact.
- Reporting. Each issue is verified, CVSS-rated and documented with a step-by-step reproduction and a practical fix your team can apply.
- Free retest. Once you have remediated, we re-test at no extra cost to confirm the attack path is truly closed.
What you receive
- MCP tool-chain threat model
- Exploitation PoCs with impact
- Tool-scope & trust hardening plan
- Free retest after remediation
Your deliverables
When your mcp server & tool-chain security testing wraps up, you receive a clear, audit-ready report plus a walkthrough call with your team. Inside you will find:
- A concise executive summary that management and the board can act on
- Every technical finding with a reproducible, copy-paste proof of concept
- CVSS v3.1 ratings and plain-language business impact for each issue
- Practical, prioritised remediation your developers can implement straight away
- A free retest and updated finding status once fixes are in place
- A signed attestation letter for clients, auditors, GDPR, NIS2 and ISO 27001
Standards & frameworks
OWASP LLM Top 10
OWASP Agentic Threats
MITRE ATLAS
What you gain
By the end of your mcp server & tool-chain security testing, you will know exactly which weaknesses a real attacker could exploit, what it would cost your business, and the precise order in which to fix them — backed by evidence, not a scanner’s guesswork. Cyprus firms use our findings to close critical gaps, satisfy client and regulator security questionnaires, and demonstrate due diligence for GDPR and NIS2. With a free retest included, you also get documented proof the issues are resolved.
Working with us
Every mcp server & tool-chain security testing begins with a short, no-obligation scoping call to understand your goals, environment and constraints, followed by a fixed-price proposal. Most work is delivered remotely, and because we are based in Cyprus we work in your timezone with on-site visits across Limassol, Nicosia and island-wide where it helps. We keep you updated throughout and flag any critical finding immediately rather than waiting for the report. Everything is covered by a signed NDA and safe, non-disruptive testing that protects your production systems. You receive your report, a walkthrough and a complimentary retest once fixes land. Engagements are typically booked one to three weeks ahead, and urgent testing can often be arranged — just email hi@cypruspentest.com.
Why Cyprus businesses choose CyprusPentest
Your mcp server & tool-chain security testing is run by senior offensive-security specialists who test the way genuine attackers do — manually, creatively and focused on proving real impact. What sets us apart:
- Based in Cyprus — local, in your timezone, with on-site coverage across Limassol and Nicosia.
- Manual, exploit-led testing that chains vulnerabilities the way an attacker would, well beyond automated scanners.
- Reproducible proof for every finding, with copy-paste steps your team can independently verify.
- Compliance-ready reporting that supports GDPR, NIS2, ISO 27001 and CySEC expectations.
- A free retest so you have documented evidence your fixes actually hold.
- Fixed-price and responsive, with a named point of contact from scoping through to retest.
Explore related services
MCP Server & Tool-Chain Security Testing pairs well with our other Cyprus penetration testing services for fuller coverage. You may also want:
- AI Agent Penetration Testing — AI agent penetration testing in Cyprus. Tool-abuse, goal-hijack and sandbox-escape testing for Cyprus companies deploying autonomous…
- AI Supply Chain Security Audit — AI supply chain security audit in Cyprus. Model provenance, plugin and dataset-integrity review for Cyprus AI…
- Prompt Injection Testing — Prompt injection testing in Cyprus. Direct and indirect injection testing across every untrusted input for Cyprus…
Frequently asked questions
What is MCP?
An open standard connecting AI agents to tools and data; because those tools carry real permissions, MCP servers are high-value targets.
Do you test server and client?
Both, plus the trust boundary between them where most issues live.
Can you assess third-party MCP servers?
Yes, and we flag supply-chain risk from external servers you integrate.