Abusive comments are not helpful. The article states that 2.5% of Okta customers, there is no information
on the number of accounts, they could be tiny, they could be massive.
All I did was look at Okta's boast that they have scaled to 50 billion accounts. That puts a bit more perspective on it. It is unlikely to be 2.5% of that total but nobody appears to know how many accounts are affected and only Okta know that.
You don't need that many customers for it to be a very large number.
Percentages can make large problems sound nice and small.