Charities | Action Fraud
www.actionfraud.police.uk/charities
The Charity Commission and Action Fraud both work to prevent fraudsters from appropriating funds under the guise of charitable donations. ... More complex fraud can take the form of a fraudster creating an entirely bogus charity and pocketing proceeds from fundraising.

Donating to Charity - USA.gov
https://www.usa.gov/donate-to-charity
Jump to Charity Scams - While the FTC does not resolve individual matters, it tracks charity fraud claims and sues companies on the behalf of consumers.

A fraudster will either pose as a collector for a charity they’ve made up, or they misuse the name of a genuine, often well-known, charity. They may be collecting sponsorship money for an event that they won't take part in or doesn't even exist. In any of these cases, the money you donate doesn’t go to charity; the fraudsters keep it for themselves.

You may be given the address of a fake website, where the fraudsters record your credit or bank account details when you go to a donation page.