An employee of Canada’s largest credit union stole the account and ID information of 5 million customers and was only detected weeks later by police who informed the unsuspecting bank and the public, triggering class-action lawsuits of over 1 billion dollars.
The second largest US health insurer was breached by hackers, allowing customer data to be stolen in an attack that began with a single employee clicking on a phishing email, costing an estimated 100 million dollars. Even when perpetrators are caught or money recovered, your reputation with customers is not so easily recovered.