Unsolicited "Secure Docs" codes - problem?

Today I got a couple of texts on my phone with six number confirmation codes for something called “Secure Docs” - I ignored them, because I didn’t log onto anything or do anything else that would lead to an expected text from this place.

Attempted hacking? Random mistake on someone’s part? Just one of those things?

Is there anything I need to do to make sure my accounts are secure?

Sounds like someone typed the wrong phone number for “Two-factor” authentication.

Thanks. That makes sense.