I am a 25% partner of website X, which earns in the low six-figures. The 75% partner has a majority rules attitude, and all accounts and passwords, and when he decided unilaterally to take a nice salary, and then reneg on a buyout agreement, I could see things turning wrong. Having built the site (technical cofounder, translated as: free coder) I have a backend to all of the user's email addresses (10,000 or so, havi…
Even as a minority stakeholder you have rights. It's possible a lawyer could help you achieve a settlement of some kind. By doing something illegal (like stealing proprietary information) you're severely decreasing your chances things working out well.
Next time they will be settled from the outset :)