ISO /IEC 21827 [documento electrónico] : information technology; : security techniques; : systems security engineering; : capability maturity model (SSE-CMM)
ISO /IEC 24762 [documento electrónico] : information technology; : security techniques; : guidelines for information and communications technology disaster recovery services
ISO /IEC 27005 [documento electrónico] : information technology; : security techniques; : information security risk management / International Standard Organization
Schneier on security / Bruce Schneier