There are three types of data involved:
1. Your identification and contact details
We ask for your identification and contact details so that MOH can reach the right person quickly during contact tracing. This data is stored in a secure server, and accessed by MOH when it’s needed for contact tracing.
2. Your TraceTogether Bluetooth proximity data
With your consent, TraceTogether exchanges Bluetooth proximity data with other devices participating in the TraceTogether Programme. This data is anonymised and encrypted, and does not reveal your identity or the other person's identity. To estimate distance, device models and signal strength recorded is shared, since different devices transmit at different power.
This Bluetooth data is stored only on your phone, and data for longer than 25 days is automatically deleted from your device. The Ministry of Health will approach you to upload your data if it's needed for contact tracing.
TraceTogether does not collect geolocation data :)
3. App analytics data
The TraceTogether App uses analytics data to improve how the App works across different phone models and OS versions. For the list of analytics data collected, see “What kind of application analytics does TraceTogether use?”
These data are used to support current contact tracing efforts and will be deleted at the end of the outbreak.
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Once contact tracing ceases, all personal tracing data that was collected will be deleted as soon as practicable.