Published in


The Most Expensive Lesson Of My Life: Details of SIM port hack

I lost north of $100,000 last Wednesday. It evaporated over a 24-hour time span in a “SIM port attack” that drained my Coinbase account. It has been four days since the incident and I’m gutted. I have zero appetite; my sleep is restless; I am awash in feelings of anxiety, remorse, and embarrassment.

This was the single most expensive lesson of my life and I want to share my experience + lessons learned with as many people as possible. My goal is to increase awareness about these types of attacks and to motivate you to…




Coinmonks is a non-profit Crypto Educational Publication. Follow us on Twitter @coinmonks and Our other project — , Email  —

Recommended from Medium

How the IoT and Modern Technology’s Virtual Attacks Are Real — And Deadly


Songbird Token Distribution: Important Update

Website security and Why it’s Necessary

Top Software Security Threats for 2021 and How to Prevent Them

{UPDATE} Word Stars - Find Hidden Words Hack Free Resources Generator

TCN Token Pre-Sale Phase 2 is active now

Not Web3, Not Web2, but Web2.5 is the Next Face of the Internet!

Bitcoin trophy

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Sean Coonce

Sean Coonce

Engineering Leadership at BitGo. Enjoy reading and writing about software development at scale.

More from Medium

How can I keep my ‘virtual assets’ safe?

Crypto Hack Support Helplines — To Recover Your Money Back From Crypto Scams

What Are Merkle Trees?

Best New Crypto to Invest in 2022