Offensive forensics is an attack technique hackers use to capture non-static data that can be useful in performing further attacks, says Joe Sremack, Principal, Berkeley Research Group, LLC, a computer forensics and e-discovery firm. In an offensive forensics procedure, the hacker captures non-static, in-memory data in order to acquire the passwords, encryption keys, or active network session data living there, which can aid them in gaining unrestrained access to precious data.