The person behind Sentinel

Amir Saber Sharifi.
Your Sentinel.

One operator. Personal accountability. No ticket queue.

01

The credentials that matter
for what you're protecting.

Not a resume. A track record of having held real things at real stakes.

A

CTO of Designity

I've run engineering for a design platform at scale — thousands of users, real production infrastructure, actual consequences when things break. That experience taught me how systems fail, and how to build them so they don't. Your digital life needs someone who's seen what happens when security isn't the first priority.

B

Ex-blockchain engineer

I've held seed phrases worth eight figures. In that world, a custody mistake is permanent — there is no bank reversal, no support ticket. That discipline is exactly what your crypto, financial accounts, and recovery systems need. Your crypto is in safer hands than your accountant's.

C

Founder, Saberistic

Strategic cybersecurity consulting for individuals, family offices, and emerging-growth companies who can't afford to get this wrong. Clients who come to Saberistic have real exposure — and they know it. I've advised on threat models for principals whose digital risk is measured in eight figures.

D

Founder, CreativX

Built a SaaS product from zero — product, team, infrastructure, the whole thing. I know what "secure enough" actually means in production versus what sounds good in a blog post. Every hardening recommendation I make is grounded in what I've actually had to build and maintain.

02

Why I built Sentinel.

I've advised on cybersecurity for high-net-worth families, founders, and family offices for years. The same pattern kept showing up: houses secured, money managed, families protected — and then the same people stored their most sensitive passwords in a notes app.

Wealthy families are uniquely exposed because they're uniquely targeted. The threat isn't generic phishing — it's social engineering calibrated to your board, your family office, your real estate portfolio. And the tools available to people who actually need protection are either built for consumers or priced for enterprises. Nobody was building for the person in the middle.

Sentinel is the service I kept wishing existed. One person, personal accountability, no handoff to a team I've never met. If something goes wrong, you call me. If something needs to change, I handle it. If you have a question, you get an answer — not a ticket number.

03

What I actually do.

I am the only person who works on your Sentinel membership. Not a team. Not a rotating analyst. Me. When you reach out, you're talking to the person who set up your vault, hardened your accounts, and reviewed your household's exposure. That continuity is the product.

For founding members, I cap the roster deliberately — so I can actually do this for everyone on it. If you're a client, I know your setup. When something happens, I fix it. When something changes in your life, I update your protection. No tickets, no handoffs, no outsourced support.

This is a small-group concierge, not a software subscription. Founding rates are locked for the life of your membership — not a promotional window.

Amir Saber Sharifi
— photo pending —
04

Talk to me directly.

If you're evaluating whether Sentinel is right for your situation, the fastest path is the Digital Risk Assessment — 10 minutes, written response, no obligation.

The Operator | The Founder | Request Assessment