TIL... despite nearly two decades here! I knew it was illegal for businesses to use contact information you gave them for some other reason to later market to y

TIL... despite nearly two decades here! I knew it was illegal for businesses to use contact information you gave them for some other reason to later market to you without your permission (especially after GDPR went into effect), but not that it was also illegal for them to simply sit down with the phone book or an autodialer.