IP-based mitigation strategies are pretty useless for ATO and credential stuffing attacks.
These days, bot nets for hire are easy to come by and you can rotate your IP on every request limiting you controls to simply block known bad IPs and data server IPs.
Is it though? While it certainly isn’t something I’d recommend, and I’ve encountered it before, if E2E encryption exists we cannot assume a data exposure had occurred.
What they do on the backend has nothing to do with this notification system. Think of it as one of these credentialess authentication systems that send a ‘magic link’ to your inbox.
Seems relevant.
https://www.notebookcheck.net/UPS-lays-off-12-000-managers-as-AI-replaces-jobs.802229.0.html