Yikes! This is exactly the kind of thing we have predicted for FATCA.
CBC is reporting a privacy breach leaks tax details of prominent Canadians.
Murray Rankin says:

“They were warned…Here we go again.”

And An Ottawa lawyer specializing in privacy law called the latest breach “very, very serious,” among the worst he has seen in 30 years.

“I don’t remember a case when CRA lost control over such information,” Michel Drapeau said in an interview.

Just imagine what could happen with a leak of far more detailed information about us. Then, think about that information falling into the hands of fraudsters–or worse.
One more reason to keep fighting FATCA–and keep donating to ADCS.