Biological data from a person are considered as sensitive data. As bioinformaticians we are probably all at some point exposed to genomic data from someone else.
For example, if you are working with cancer samples, usually you have the normal (blood) sample to substract for germline mutations. The blood sample is automatically considered as sensitive, but the tumor sample not as much. However, you can actually deduce you way back to the original genome based on the cancer genome.
In Norway we have recently implemented a service for sensitive and personal data where we can store and analyze data. I have realized that this differs a lot from country to country, but I couldn't find a proper post or website discussing this issue.
I am wondering how you handle sensitive data in bioinformatics in your home country, or your home institution, and what do you consider as sensitive data?