← BMO and Simplii

2018 BMO/Simplii — 90k Canadian banking

2018 90.0K records affected Share on X

Data compromised

Account numbers, personal info, possibly card data

Technical writeup

BMO (Bank of Montreal) and Simplii Financial suffered a breach in 2018 affecting 90,000 Canadian banking customers. Poor security allowed unauthorized access. Both banks had to reissue cards and compensate customers.

Root cause

Poor security; hacking

References