Officials said Facebook refused to allow audits of its privacy procedures. But in a statement, the company said it had “proactively taken important steps towards tackling a number of issues raised in the report” and had offered to enter a compliance agreement with Mr. Therrien’s office.
“After many months of good-faith cooperation and lengthy negotiations, we are disappointed” that regulators consider the issues raised in this report unresolved, the company said.
Pressure is increasing on Facebook from regulators in a number of countries.
On Thursday, Ireland’s Data Protection Commission said it had opened an investigation into Facebook after the company told it that hundreds of millions of user passwords were stored in plain-text format on its internal servers. On Wednesday, Facebook said it expected to be fined up to $5 billion by the Federal Trade Commission for privacy violations.
In Canada, Mr. Therrien called for new laws that would allow his office to regularly examine the privacy practices of Facebook and other social media companies without waiting for a public complaint.
Other Canadian officials have complained about inaction from social media companies over election interference, although a federal election scheduled for October makes it unlikely that any new laws will appear until at least next year.
The complexity of Facebook’s systems and the company’s general opaqueness, Mr. Therrien said, make it likely that users are unaware that the company is violating their privacy or breaking Canadian laws.
The Canadian investigation began after reports last year that Cambridge Analytica, a political data firm hired by President Trump’s 2016 election campaign, gained access to personal data on up to 87 million Facebook users. Some 622,000 Canadians may have been affected, according to the regulators.