Differential privacy is a privacy guarantee that allows for publicly sharing information about a dataset by describing the patterns of groups within the dataset while withholding information about individuals in the dataset.
When computing on data via differential privacy, it adds stochastic noise to each data element that masks the actual data element. Stochastic refers to a variable process where the outcome involves some randomness and has some uncertainty. This results in significant accuracy degradation, whereas TripleBlind’s one-way encryption algorithms don’t add any noise to the dataset that would impair results.
Differential privacy is suitable for situations with a higher degree of tolerance for error. For example, Apple keyboard suggestions – Apple doesn’t need to know exactly what you’re typing, but needs to know in general what people are typing to offer reasonable suggestions.
Apple itself sets a strict limit on the number of contributions from a user in order to preserve their privacy. The reason is that the slightly biased noise used in differential privacy tends to average out over a large number of contributions, making it theoretically possible to determine information about a user’s activity over a large number of observations from a single user. It’s important to note that Apple doesn’t associate any identifiers with information collected using differential privacy.
The majority of the other approaches to data collaboration we’ve covered only work for tabular or columnar data; including homomorphic encryption, synthetic data, secure enclaves, tokenization and differential privacy. These approaches face severe challenges when it comes to producing high-performance, accurate models on complicated datasets like x-ray image analysis. However, TripleBlind is the solution to this problem since these images are obfuscated and encrypted – complying with HIPAA regulations.
If you’re interested in knowing more about how TripleBlind can safely and efficiently unlock privacy for you, please email firstname.lastname@example.org for a free demo. Don’t forget to follow TripleBlind on Twitter and LinkedIn for our latest updates.
This is the final blog of our Competitor Blog Series where we compared TripleBlind’s technology to other approaches of data collaboration. If you missed the other blogs, you can check them out below!
Read other blogs in this series: