What do you mean "anonymized"? It's your DNA, it basically is you. Much more than your name, email address, or whatever you consider de-anonimization.
http://www.bbc.co.uk/news/uk-england-somerset-36245888
A man killed a girl. His DNA was gathered at the scene. 26 years later his daughter committed a minor crime, and had her DNA taken as part of her arrest, which led them back to him.