Protect LLM-powered applications from unauthorized access, data exposure, unsafe actions, abuse, and runaway provider costs
Map attacker goals to LLM API pipeline stages and connect each risk to a specific control.
Implement verified caller identity and tenant binding without trusting caller-supplied identity fields.
Enforce tenant and retrieval authorization across requests, stored state, caches, and document context.
Constrain agent actions with server-side authorization, validated arguments, delegated permissions, tool allowlists, and approval gates.
Apply quotas, concurrency limits, monitoring, and response playbooks to detect misuse and prevent denial-of-wallet.
Review the complete LLM API pipeline through incident response, regression testing, and threat-to-control verification.
5 sections · 14 lessons
Map the LLM API request path, its trust boundaries, attacker goals, and the controls required to protect each stage.
2 lessonsImplement authenticated principals, tenant isolation, permission-aware retrieval, and output protections that keep customer data and sensitive content within authorized boundaries.
4 lessonsConstrain agent actions, delegated permissions, MCP servers, and untrusted inputs so model-driven tools cannot escalate into unauthorized data access or actions.
4 lessonsEnforce usage and spending limits, detect compromised or abusive activity, and centralize third-party provider access under credential, egress, timeout, output, and retention policies.
3 lessonsRun an end-to-end incident response and security review using regression tests and a threat-to-control table.
1 lessonLLM APIs introduce trust boundaries across callers, tenants, models, tools, data, and providers, creating failure modes that traditional API controls do not fully address. This course is for backend developers, AI engineers, and security practitioners who need practical protection for LLM-powered applications. You will build a complete security view of the request path, apply access and agent controls, limit abuse, and review incident readiness end to end.
The course covers threat mapping, caller authentication, tenant isolation, retrieval authorization, output protection, agent and MCP tool controls, prompt injection defenses, quotas, abuse detection, provider safeguards, and incident review.
From project managers and operators to founders, analysts, and teams adopting AI, Fenzo is for people who want to get better at the work they already do.
Anything from using AI for project planning and analysis to improving workflows, decision-making, communication, and delivery. If you can describe the skill or task, Fenzo can build a course around it.
Yes. Tell Fenzo what you do, what you’re trying to accomplish, and where you’re stuck, and Fenzo will shape the course around your role, your goals, and the work you actually have to do.
No. Fenzo adapts to your starting point, so you can begin with the fundamentals or jump straight into more advanced work.
Yes. Fenzo for Business puts the whole team on one plan — shared seats, courses you can assign, and reporting on who has finished what.
See Fenzo for BusinessYou start by describing your goal or taking a short skill benchmark. Fenzo uses that context to identify gaps and shape the learning experience around them.
Yes, Fenzo works in your mobile browser.
Something to operate in every section.
Three findings from decades of learning research shaped how every Fenzo lesson is built.
Average pass rate · Freeman et al., PNAS 2014
What the science says
Students in lecture-only classes are 1.5× more likely to fail.
How Fenzo does it
Every Fenzo lesson is interactive. No passive reading or watching, ever.
You work through itAI does it for you
Skill retention over time · with vs. without practice
What the science says
Offloading thinking to AI erodes the very skills you’re trying to build.
How Fenzo does it
Fenzo makes you do the thinking — guided, but never done for you.
Retrieval practiceRe-reading
Long-term recall · retrieval vs. re-reading
What the science says
Recalling information beats re-reading it for building durable understanding.
How Fenzo does it
Lessons weave in quizzes and recall prompts, so it sticks.