Verified Confidence: high
Primary source found; it says the same thing, the scope matches, and it is reasonably current.
Safe rephrasing
Safari has blocked third-party cookies by default since Safari 13.1 and iOS 13.4 (March 2020); Chrome, the largest browser, still allows them.
What the source says
Full Third-Party Cookie Blocking Cookies for cross-site resources are now blocked by default across the board.
WebKit (Apple) — Full Third-Party Cookie Blocking and More (Mar. 2020)
- Commonly cited as
- "Third-party cookies are already dead on Safari"
- True origin
- WebKit (Apple) — Full Third-Party Cookie Blocking and More (Mar. 2020)
- Type
- Reference fact: A frequently needed number or rule taken directly from a primary source (e.g. Pew, Census, IAB/PwC, FTC), with its as-of date.
- Year
- 2020
- Data as of
- Safari 13.1 / iOS 13.4, March 2020
- Last checked
- Method & sample
- Official WebKit blog announcing Intelligent Tracking Prevention changes in Safari 13.1 and iOS/iPadOS 13.4.
- Drift between quote and source
- Chrome kept third-party cookies; 'cookies are dead' applies to Safari and Firefox, not all browsers
- Interest
- Apple describing its own browser.