Security token
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A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to, or in place of, a password. Examples of security tokens include
A radio-frequency identification card used to open a door
Example of keypad issued by a bank
A disconnected token. The number must be copied into the PASSCODE field by hand.
YubiKey
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The YubiKey is a collection of hardware authentication devices manufactured by Yubico AB, a company founded in 2007 by Jakob and Stina Ehrensvärd and headquartered in Stockholm, Sweden, with an Americ
The YubiKey Neo-n (left, 2012–2016) and Neo (right, 2012–2018)
The FIDO U2F Security Key (2013–2018)
The YubiKey 4 (left, 2015–2018) and 4C (right, 2017–2018)