The FBI's director has admitted publicly what digital privacy advocates have warned about for years: law enforcement agencies are buying your data from brokers to circumvent the need to obtain subpoenas: https://gizmodo.com/kash-patel-admits-the-fbi-is-buying-private-data-on-americans-2000735317
Kash Patel Admits the FBI is Buying Private Data on Americans

Sen. Ron Wyden called it an "outrageous end run around the Fourth Amendment."

Gizmodo