Human Error: Data Leaks since 2021

Hello, I found a lot of sensitive data that has been revealed or leaked, this situation is indeed a situation that no one wants, but if the School has secured or taken action, I don't think it will eliminate negligence or old evidence, the most recommended thing to do besides making security Advanced technology is transparent Transactional or public ledger,  Sometimes data leaks will not be a problem if the transaction What is done is not carelessly going into personal pockets unless it is necessary or there are written regulations, data leaks are caused by human carelessness not how sophisticated technology is, thank you and hopefully there will be no more carelessness in the future.