Google has officially made Privacy Sandbox-which will create a privacy-friendly alternative to third-party cookies-generally available to developers in Chrome. The big news for marketers is that Google will phase out third-party cookies for 1% of Chrome and Android users in Q1 2024 with full deprecation scheduled for the second half of the year. This is the official death of third-party cookies as Safari and Firefox already have them blocked by default. What does the end of third-party cookies mean for marketers?