You're an American agent in Moscow. They can easily get a real sample of your DNA and run a match. Now they know your real relatives. How do you fake this? Eve

You're an American agent in Moscow. They can easily get a real sample of your DNA and run a match. Now they know your real relatives. How do you fake this? Even if the CIA create a complete web of fake identities in the DNA database, how do you stop a real relative uploading their DNA?