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Callback

The practice of ending an unexpected or suspicious call and independently dialing a phone number obtained from your own prior records, never from the caller or from anything the caller provided, to verify a claimed identity through a channel the caller cannot control. (see Topic 1.3)

Defined in 2 GAGE programs, which carry 12 distinct definitions of it. The wording above is taught in Senior AI Scam Defense.

How each discipline defines it

The same term does different work depending on who is using it. These are the definitions as each program teaches them, unedited.

Senior AI Scam Defense

The four-step verification behavior taught in this topic: end the current call completely, find a phone number from a source the caller never touched, dial that number, and ask directly whether the situation described in the original call is real. The core defense against voice-based impersonation of any kind.

Foundations of Robotics and Physical AI

A function registered with a subscriber (or timer) that the ROS 2 executor calls when a message arrives. Callbacks should be fast and non-blocking to avoid starving the executor and causing missed messages.

Senior AI Scam Defense

The practice of ending a suspicious contact and independently calling a phone number you already had, printed on your own card or statement, rather than any number provided during the suspicious contact itself. (see Topic 1.3)

Senior AI Scam Defense

The verification step taught in Topic 1.3, performed after the active pause ends a contact: calling back a person or institution using a phone number the learner finds independently, never a number supplied by the original caller. (see Topic 1.3)

Senior AI Scam Defense

The verification habit taught in Topic 1.3: hanging up on an incoming call, finding a phone number independently (never from the caller), calling that number, and asking whether the situation described is real. (see Topic 1.3)

Where it is taught

The exact lessons this term appears in. The first 7 topics of every program are free with a free account.

Terms it appears with

Not an alphabetical neighbourhood: these are the terms taught in the same lessons, ranked by how often they appear together.