Texas' crazy abortion law, most likely.

The legislature tried to pretend they weren't criminalizing abortion, by declaring that totally uninvolved randos can sue anybody for having or somehow helping in an abortion, and take thousands from the defendant(s) as a reward.

It's crazy because the usual rule is that you can only sue for harm that happened to you, but Karen McBusybody stalking your Facebook feed wasn't hurt, she just wants to strike out at "evil harlots" while making $10,000.

Attorneys general in places like Texas can subpoena the companies for records requests, and try to deduce if any of those tracked had abortions.