All OFFICIAL-SENSITIVE data must be marked and contain handling instructions identifying why the data is deemed sensitive, how it must be held, processed and transferred.
ˈɔːl əfˈɪʃəlsˈɛnsᵻtˌɪv dˈeɪɾə mˈʌst biː mˈɑːɹkt ænd kəntˈeɪn hˈændlɪŋ ɪnstɹˈʌkʃənz aɪdˈɛntᵻfˌaɪɪŋ wˌaɪ ðə dˈeɪɾə ɪz dˈiːmd sˈɛnsᵻtˌɪv, hˌaʊ ɪt mˈʌst biː hˈɛld, pɹˈɑːsɛst ænd tɹænsfˈɜːd.