privacy – Data leakage in Internet services only

Nowadays, only Internet services have become very popular, such as direct banking and many others. The advantage of such services is that you do not have to spend time to go to the office to get a service, everything can be done online. However, the disadvantage is that you have to somehow confirm your identity. In general, this involves sending a scan (a photo) of your official identity card, etc.

The question is how can I be sure that my official identity card will not be used by someone from the company. A good solution might be to modify the analysis (place a watermark, etc.), but these services require analyzes and unchanged photos. What could be a good solution in this case?