This means third parties who have not agreed to Snapchat's terms and have no relationship with Snap have their contact information collected and stored by the company.
Snapchat collects extensive personal data including precise location, device identifiers, contact lists, and behavioural data, which is used to build advertising profiles and shared with third-party advertisers and partners. Users in certain jurisdictions have enhanced rights including the right to opt out of personalised advertising and the sale or sharing of personal data. You can manage your privacy preferences and submit data access or deletion requests through Snapchat's in-app privacy settings or at https://www.snap.com/en-US/privacy/privacy-policy.