Data Breach Sparks Action Against Capital One in Ontario


Personal Injury Firm Diamond and Diamond represents victims in national class-action lawsuit

TORONTO, August 7th, 2019- Diamond & Diamond Lawyers LLP today announced the filing of a class-action lawsuit against Capital One as a result of a data breach of sensitive and personal information.

Approximately six million Canadians were affected by the breach, which was revealed last month. Those affected include current customers and those who applied for credit with the organization between 2005 and 2019.

“This data breach could have very serious ramifications for those affected with regards to their future finances,” said Jeremy Diamond, Manager Partner at Diamond and Diamond Lawyers. “We urge those who may have been affected, especially in Ontario, to immediately contact our firm.”

The defendant acknowledges the following information was disclosed within the breach:

  • Names
  • Addresses including postal codes
  • Phone Numbers
  • Emails
  • Birth dates
  • Income Information
  • Social Insurance Numbers (affecting approximately 1 million)

Capital One has acknowledged they will be contacting those affected over the coming weeks through letter or email.

Darryl Singer, the lead lawyer on the lawsuit stated, “What makes this breach so egregious is that it includes identifying information such as someone’s name and social insurance number that cannot be changed. That information could be present on the dark web and those effected could unknowingly become a victim of identity theft years from now.”

Diamond and Diamond Lawyers LLP believes that millions may have been impacted by this breach and are potentially entitled to seek compensation. Any individual who has provided any personal information to Capital One within 2005 and 2019 is encouraged to contact the firm immediately by calling 1-800-567-HURT (4878) or visiting

About Diamond and Diamond:

  • Family-owned firm has grown from 1 office in Toronto to 20 locations in a mere 5 years
  • Featured legal commentators on 30+ radio and television stations and print media
  • Sponsorships with Canada’s biggest sporting franchises (BC Lions, Calgary Flames, Ottawa Senators, as well as OHL teams across Ontario)
  • 2016 Leger Polling shows evidence of unparalleled brand awareness. Nearly 70% of GTA residents are aware of the firm with only 3% able to name a competitor

SOURCE Diamond and Diamond Lawyers LLP

For further information: or to request an interview please contact: Jordan Whelan at


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