So what happens when a trusted member of staff leaves ? You need to think about recruitment, Accounts Department organises final pay and P45, colleagues organise a few drinks and a card. Your front door security might want their key card back. If you have Cyber Essentials you will have a policy which wisely reminds you that even though your departing friend is a trustworthy sort -you must deny that person future access to your system and your data. Easily overlooked !