Federal government officials are expected to shed new light this afternoon on what caused the Canada Revenue Agency's online tax services to go down for two days.
"Due to a recent vulnerability impacting specific computer systems worldwide, we took our website offline and are working.to address this issue", a CRA spokesperson said in an email to the Star.
Canadians have up to May 1 to file their income tax returns and benefits, which makes this period busy with online users.
At this time, the Canadian Revenue Agency is not aware that any personal information has been affected; however, it continues to assess and remedy the situation.
Later Friday afternoon, however, Samson said the CRA determined that while its website was protected, its digital services were "potentially vulnerable".
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The services include ones such as "My Account", "My Business Account", "Netfile", "EFILE" and "Auto-Fill My Return".
Services were restored to normal on Sunday evening.
Statistics Canada took down the website late on Thursday night soon after discovering "unauthorised access" to its server, which the agency said does not contain any personal or sensitive information.
The CRA said during the outage, tax returns continued to be processed and anyone who filed their return before the service interruption should not expect a delay in getting their refund.