To encourage widespread acceptance of Bluetooth-based COVID-19 contact tracing applications, developers should allow consumers to opt out of data sharing at any time, and they should also be more forthcoming about their security efforts and data usage, according to the results of a new survey.

For the study, Checkmarx polled 1,500 Americans and found that 48 percent said they would refuse to opt in to contact tracing apps, or would be unlikely to opt in. Another 23 percent said they were on the fence. "This brings about questions of contact tracing effectiveness and accuracy if minimal adoption if seen," Checkmarx concluded in a company blog post today.

However, respondents said that they'd be more likely to use the apps if certain precautions were in place. Thirty-eight percent said their top request would be to be able to opt out of data sharing at whatever point they choose to do so.

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