On Tuesday the Canadian Broadcasting Corporation reported that it had “inadvertently” received 18 pages of “detailed tax information” pertaining to hundreds of primarily rich and famous Canadians.

The records were from a Canada Revenue Agency spreadsheet spanning from 2008 to 2013, and they included home addresses and information about tax credits granted for charitable donations.

According to the CBC, which says it is withholding some information for privacy purposes, tax details were found for prominent Canadians such as “author Margaret Atwood, former prime minister Jean Chrétien, grocery magnate Frank Sobey, cartoonist Lynn Johnston, pollster Allan Gregg, financier Stephen Bronfman, former CBC executive Richard Stursberg, Olympics chief Richard Pound, and many others.”

The list detailed how much money these donors claimed on their tax returns for a number of “cultural donations” including manuscripts, art, and even animated cells. It also showed what the Canada Revenue Agency ultimately determined the donations were worth. Donations included some personal papers worth a few thousand dollars, and even a $255 million Rubens painting that was given to the Art Gallery of Ontario (although the Canada Revenue Agency ultimately refused any tax credits for the Rubens, according to the CBC).

The CBC says that privacy breaches at the hands of the Canadian government “have become almost routine,” with more than 100 breaches between April 1 and July 31 this year. In that time period, Veterans Affairs suffered 38 breaches of private information, Citizenship and Immigration saw 31 breaches, and the Canada Revenue Agency had 14 breaches.

In addition, an October 2013 report done by Canada's Privacy Commissioner's Office found multiple instances of “breaches involving employees inappropriately accessing taxpayer information in recent years,” as well as "weaknesses in key privacy and security practices that led to taxpayer information not being protected as it should, with thousands of files being accessed inappropriately for years without detection."

Update: The Canada Revenue Agency responded in a press release in which it explained: