From the Irish Times.
I've just heard the news about a prankster managing to list the British Prime Minister's residence at Number 10 Downing Street on the site for Holiday Bookings for 55 pounds/night. And put up fake glowing reviews. And collect at least one payment before it was taken down.
The article goes into a recent Irish situation
[snip]
... to a landlord who contacted this newspaper recently to complain that a property she owned and was renting to long-term tenants had been listed without her knowledge on the site. The listing had been used to extract money from visitors, some of whom had paid substantial sums to people unknown. When the landlord tried to contact the company to alert them to the fraud and to ask them to remove her property from the platform, she ran into multiple brick walls. It was only when this newspaper highlighted the issue that the property was delisted.
"Fake listings, phantom bookings and unhelpful bots: Booking.com’s credibility problem"