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“The has worked around the clock to reduce the threat to Canadians affected … The credential stuffing attack on GC has ceased,” he said.īrouillard said the affected accounts were cancelled as soon as the threat was discovered, and departments are contacting users whose credentials were compromised to provide instructions on how to receive a new GCKey. WATCH | Thousands of CRA accounts hacked in cyberattack: “By using previously hacked usernames and passwords, the bad actors were able to fraudulently acquire approximately 9,000 of the roughly 12 million active accounts, a third of which accessed such services and are being further examined for suspicious activities,” Brouillard said. (CBC News)Īcting chief information officer for the Treasury Board of Canada Secretariat Marc Brouillard confirmed the attacks were a form of “credential stuffing,” where hackers fraudulently obtain usernames and passwords to accounts on other websites, and take advantage of the fact that many people use the same password for different accounts. Officials expect to have service back by Wednesday. On Saturday, the CRA said it had suspended its online services after what officials described as one of two “credential stuffing” schemes. The third attack took place over the weekend, causing CRA to temporarily cut off access to its online services on Sunday, including services connected to My Account, My Business Account and Represent a Client.Ĭanadians attempting to log in to their Canada Revenue Agency accounts are met with a message informing them that they will not be able to access their accounts until further notice.
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The first attack occurred when hackers involved in the GCKey attack gained access to 3,400 CRA accounts.Ī second attack took place last week where hackers took advantage of a vulnerability in the agency’s software that allowed them to bypass the normally-required security question and gain access to a user accounts. See, Find out if you need to register for the GST/HST: GST/HST for digital economy businesses.Marc Brouillard (left), acting chief information officer for the Treasury Board of Canada Secretariat, and Annette Butikofer, chief information officer at CRA (to Brouillard’s right), spoke Monday to the recent cyberattacks against GCKey and CRA (Sean Kilpatrick/THE CANADIAN PRESS)Īnnette Butikofer, chief information officer at CRA, said Monday at a hastily arranged news conference in Ottawa that the CRA was impacted by three separate cybersecurity incidents that may have allowed fraudsters to access the CRA My Account of 5,600 individuals.
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This service is the only registration option available to non-resident digital economy businesses who are required to register for the simplified GST/HST. This service is available for non-resident businesses that need to register for a business number. Non-Resident Business Number and Account Registration Web Form