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Data point of one incoming. I work in ecommerce. 90% seems stupid low, based on our data.

A couple years ago we were seeing a dozen or so successful login requests per minute against a background of ~40 unsuccessful requests per second.

We were forced to implement rate-limiting on logins, which has resulted in more than a few customer service headaches. But it's now the reality of online retail.

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I'll add another data point, from the consumer telecoms industry. 90% feels way too high from what we had to head with, even prior to implementing rate-limiting and other defences.

We ended up tracking actors as they switched up their techniques to evade us and our defences, and ended up learning a lot about credential stuffing, the tools involved and some of the motives behind them attacking lesser-known websites. We ended up blogging about our findings, should anyone else have to deal with this cat and mouse fun: https://breachinsider.com/blog/2017/credential-stuffing-how-...

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