The six sources of loss of funds in the public sector include:

1. Misappropriation of Funds:
   Public officers may misuse or divert public funds for unauthorized purposes, leading to significant financial losses.
2. Falsification of Records:
   Creating fraudulent records to cover up financial discrepancies, making it difficult to track actual fund usage.
3. Conversion of Funds to Personal Use:
   Public officials may convert public funds to their own use, depleting the available government resources.
4. Fraudulent Payments:
   Payments made based on forged or incorrect documentation, such as paying non-existent vendors or inflated contracts.
5. Theft:
   Physical theft of cash, vouchers, or assets that were meant to support public services or operations.
6. Negligence:
   Failure to properly monitor and manage financial transactions, leading to inadvertent losses due to untracked expenses or uncollected revenues.