sˈiːkɹᵻt ðɪs mˈɑːɹkɪŋ ɪz jˈuːzd fɔːɹ ˌɪnfɚmˈeɪʃən wˌɪtʃ nˈiːdz pɹətˈɛkʃən ɐɡˈɛnst sˈɪɹiəs θɹˈɛts, ænd wˌɪtʃ kʊd kˈɔːz sˈɪɹiəs hˈɑːɹm ɪf kˈɑːmpɹəmˌaɪzd—sˈʌtʃ ɐz θɹˈɛts tə lˈaɪf, kˈɑːmpɹəmˌaɪzɪŋ mˈeɪdʒɚ kɹˈaɪm ɪnvˌɛstɪɡˈeɪʃənz, ɔːɹ hˈɑːɹmɪŋ ˌɪntɚnˈæʃənəl ɹᵻlˈeɪʃənz.
SECRET This marking is used for information which needs protection against serious threats, and which could cause serious harm if compromised—such as threats to life, compromising major crime investigations, or harming international relations.