Your data is kept on a secure server hosted in the UK by DigitalOcean. The data is secured against electronic and physical theft to prevent mis-use.
Their strong commitment to data security was a key aspect to DigitalOcean being selected as the hosting service (Data Processor) for the Customer Data we hold. Their clear Data Processing Agreement and commitment to Compliance and Certification provide evidence of this (our services are at the LON1 Datacenter unless you have been explicitly told otherwise).