Last year I applied for an assistant professor position in Sweden and unsuccessful. This year I attended a conference there. In the informal discussions afterward, a professor told me that he works on a related topic and I can give him a visit if I will be in town. After the conference, I visited his office and we had a long and interesting conversation. He told me that my idea is very interesting and we should collaborate. As a joke, I told him that proposed this idea in my last year's application but you didn't like it. He said I am sure there was no such idea in the applications and told me to let's check. He found my application on his computer and we talked about it.
I didn't mind as there was nothing secret in my application. But it made me wonder. I thought (until that moment) that all applications should be treated confidentially within the search committee and all materials should be destroyed (not only at the individual level but also at the institutional level).
Isn't it illegal for the institution and the committee to keep the application materials when the search is completed? (I believe most countries have similar data protection laws, my question is not about Sweden only)?
Isn't it a breach of obligatory confidentiality if a committee member discusses an application outside the search committee? For example, tell a colleague or in another search committee that this person had applied for the other job too. (it was not my case, but I am curious)
When we apply for a faculty position, does the application die after the search or it lives on and on through documents and committee members?