https://tech.newstatesman.com/coronavirus/uncertainty-over-who-could-access-... "Gould seemed to signal that a broader range of parties could theoretically get their hands on the data. When asked whether this could include Apple and Google, Gould did not categorically rule it out. “I can’t see a scenario in which Apple and Google would have access to that data,” said Gould. He was also unable to answer whether employers would be able to gain access to the data under the auspices of ensuring “the health of their employees”. Gould was unable to immediately rule this out. Instead, he said because it touched on “issues of law”, he would need to consult on the question and return answers to the committee in writing."