https://techcrunch.com/2019/01/15/another-huge-database-exposed-millions-of-call-logs-and-sms-text-messages/

An unprotected server storing millions of call logs and text messages was left open for months before they were found by a security researcher.

If you thought you’d heard this story before, you’re not wrong. Back in November, another telecoms company, Voxox, exposed a database containing millions of text messages — including password resets and two-factor codes.