[kmontrose]

The breach itself was announced shortly after it was discovered: https://stackoverflow.blog/2019/05/16/security-update/

And affected users were notified once identified, which was shortly after the announcement: https://stackoverflow.blog/2019/05/17/update-to-security-inc...

This is an update with more details, which was held back for legal reasons.

[sradman]

Yes, thank you. My wording was ambiguous; my bad.