Why would they take the firing poorly? Why fire the person at all? If you trusted them enough to work on critical data and systems they must have been doing their job well.<p>If this person _wants_ to hurt you they will. There&#x27;s nothing you can do to prevent it. All the legal protection and fake policies are not going to prevent this person from creating multiple copies of the data and releasing it a year later.<p>Your best bet is to make the person happy enough to let the betrayal go. Such as a huge severance package.<p>If the person is anything like me, they will have backups as well as documentation and copies of all conversations that have ever taken place in email, Slack etc.<p>If they want to hurt you they can and will and the data is probably not the only way they can do that. At the end of the day don&#x27;t fuck people over or they will fuck you over.<p>Be as nice as you can and make sure you are justified in firing this person or else they are going to fuck you.