A-Z Glossary of Information Security and Social Engineering Terms

Out Of Band (OOB) Authentication

Out Of Band (OOB) Authentication

The use of a separate communication channel, such as an email, telephone, or in-person request, to verify the veracity of a request. This is considered to be a type of two-factor authentication. Many high-profile phishing and cyber-attacks on organisations might have been averted if employees had been trained to use OOB authentication.

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