# John Tinkelenberg

## Cool keys: Exploring the security model for bitcoin and YubiKeys
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## Refer a friend to Casa and earn rewards
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## The institutional case for self-custody
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## 5 ways to personalize your Casa vault
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## How estate planners can include bitcoin in a will
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## How to HODL: Preparing for the next bull market
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 2 years ago

## A practical guide to using exchanges and self-custody
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 3 years ago

## How to orange-pill: 5 tips for teaching bitcoin to friends and loved ones
by [John Tinkelenberg](https://blog.casa.io/author/john-tinkelenberg/) 3 years ago