Amendment 1 updates Recommendation ITU-T X.1086 to incorporate multiple biometric information in telebiometric protection procedures by modifying the summary, keywords, scope, references, definitions, abbreviations and acronyms, and bibliography.

The amendment defines new vulnerabilities and proposes guidelines for the protection of the multibiometric system at four different fusion levels: the sample-level, the feature-level, the score-level, and the decision-level.

Amendment 1 adds Appendix V to describe techniques to be applied for the protection of multibiometric data.