### Explanation
Social media platforms often allow users to sign in through third-party services like Google, Facebook, or Apple. When users choose these authentication methods, they create digital connections between their accounts. These integrations generate unique identifiers that can be used to trace a user across different platforms and build a more complete digital footprint.
### Examples
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### Types
- business
- technical
### See also
- {{internal links to similar weaknesses}}
### Typical techniques
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