
Increased scrutiny of data security is concentrating ad spend in walled-garden companies such as Amazon, Facebook and Google, as their vast swaths of consented first-party data makes them a privacy-compliant means of targeting.
Increased scrutiny of data security is concentrating ad spend in walled-garden companies such as Amazon, Facebook and Google, as their vast swaths of consented first-party data makes them a privacy-compliant means of targeting.