That doesn't really answer my question. I am not saying sharing data is a good idea but I was hoping to get some suggestions as to how the data might be used to my detriment. Everyone seems to talk about vague concepts of privacy without giving any examples.
Life insurance premiums and or their acceptance criteria, DVLA licence renewal especially with regard to hypo awareness and eyesight. Targeted advertising (as Jaylee pointed out both of us get frequent ED advertising. I am getting Care Home and Retirement offers already due to my age I presume). We already get something like 6 or more phishing phone calls a a day from already hacked internet data. But I can see the data in this database being used by legitimate companies gaining legal access to do targeted advertising of their own on top of the guff I already receive.
The major one which I currently avoid is having that data being used by companies that I may have applied for employment with, in much the same way that our social media data seems to be scanned. Any mental health issues or depression treatment could be used against applicants.
Visa applications and work abroad could be affected too. Holiday insurance is one that currently gets affected by medical issues, and this database could be checked to ensure our applications for cover are not hiding previously undeclared conditions.
Lastly, pension plans that use annuity insurance could be affected by pre-existing medical history. We do not know how our records could be interpreted, and unaware of how early life events may be taken into account. Most of these currently require us to sign a release for medical record access, so we remain in control. This database with backdoor access could be used without our knowledge or permission. By persons unknown or identifiable by us, Hospital admissions for drug misuse or alcohol abuse at any time can bar entry into the USA for example, and prevent the use of hire cars abroad. It only needs to happen once in your lifetime.
This database only covers the last 10 years as planned, but how will they sift out the date-expired info on time to ensure this is strictly adhered to? I get the impression it may only apply to the primary upload in September.