Press the Deactivate button.

Managing Knowledge-Based Authentication 7-29 is fundamentally correct but there are minor variations such as typos, misspellings and abbreviations they should pass. The increased usability of KBA reduces or eliminates the need for unnecessary call center involvement in moderate risk situations and self service flows. Answer Logic fuzzy logic algorithms can be configured on the Answer Logic page. The algorithms are divided into three categories: Common Abbreviations, Fat Fingering accidentally pressing the nearest neighbor on the keyboard, and Phonetics. The algorithms are available for both the online challenge and phone challenge processes. Out-of-the-box Answer Logic is only functional for English. Abbreviations can be globalized but creation of locale specific text equivalency files is required. For information, refer to Section 7.11, Customizing Abbreviations and Equivalences for Locales. Example of How It Works Question : Who was your favorite teacher in high school? Registered answer : Mrs. Smith Given answer : Misses Smuth Logic level : If set to High, the answer is accepted.

7.9.2 Common Response Errors

This section highlights the most common response errors and shows how Answer Logic algorithms are used for the system to intelligently detect the correct answers in the challenge response process. Examples of abbreviations, phonetics, and keyboard fat fingering are also provided.

7.9.2.1 Abbreviations

Common abbreviations, common nicknames, common acronyms, and date format are handled by this algorithm. Common Abbreviations This algorithm matches the words in the following pairs as equivalent. OAAM Admin has predefined list of word-pairs that cover common abbreviations, common nicknames and common acronyms. ■ Street - St. ■ Drive - Dr. Table 7–7 Answer Logic Algorithm Example Algorithm Description Reason Abbreviations This algorithm handles common abbreviations, common nicknames, common acronyms, and date format. Looks at file for allowed matches. If the file contains Mrs=Misses, the match can be made in either direction. Phonetics This algorithm handles Answers that sound like the registered answer, regional spelling differences, and common misspellings Smiith sounds like Smith Keyboard fat fingering This algorithm handles Answers with typos due to the proximity of keys on a standard keyboard. u is directly to the left of i so it is allowed 7-30 Oracle Fusion Middleware Administrators Guide for Oracle Adaptive Access Manager ■ California - CA The list can be customized by creating a new abbreviation file, custom_auth_ abbreviation_config.properties. For information, refer to Section 7.10, Customizing English Abbreviations and Equivalences. Common Nicknames Oracle has a predefined list of the most common nicknames that is used in the challenge response process. ■ Timothy - Tim ■ Matthew - Matt Date Format The questions that require date as the answer specify the format in which the user should enter the answer. The format is either YYYY or MMDD, but not both. However, from experience, users still use other formats during the challenge response process. The abbreviation logic for date format sees the following as the same: ■ 0713 ■ 713 ■ July 13th ■ July 13 ■ July 13, 1970

7.9.2.2 Phonetics

Answers that sound like the registered answer, regional spelling differences, and common misspellings are handled by this algorithm. The phonetics algorithm is only supported in English. Common Misspellings Oracles Phonetic Answer Logic algorithm accounts for misspellings. ■ ph - f ■ Correct word: elephant - Spelling mistake: elefant

7.9.2.3 Keyboard Fat Fingering

Oracles Fat Fingering algorithm accounts for typos due to the proximity of keys on a standard keyboard and transposed letters. Answers with typos due to the proximity of keys on a standard keyboard are handled by this algorithm. The number of fat fingering characters allowed depends on the length of the original word and the level set. The algorithm returns a percentage score associated with the characters that have an exact match. The intensity determines the minimum score required to match the answer with the registered answer. Common Typos ■ Switching w and e ■ Switching u and i Note: The fat fingering algorithm is only supported in English.