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Questions tagged [authenticator]

The tag has no usage guidance.

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Is there any way to use my Titan security key via NFC on my laptop, instead of USB? [migrated]

My Google Titan security key has both USB and NFC interfaces, and I'm able to use it via NFC on my Android phone. However, my laptop also has an NFC reader, and it doesn't seem to work out of the box. ...
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1answer
43 views

Which party stores the link between user and device in WebAuthn?

Looking at the online resources regarding WebAuthn, I still haven't been able to figure out which of the involved components (or parties) that store the link between the user and his/her authenticator ...
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1answer
41 views

How does DUO push button method and other methods actually work?

Google authenticator uses HOTP and TOTP algorithm for TFA. What is the basic working principle of DUO push? What brings security to DUO push?
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1answer
97 views

How does Google Authenticator interact with apps on an iPhone?

I am clear on how Google Authenticator works when logging on to a website and I am clear on that. However, these days everyone is using apps for everything. The Twitter app, the Facebook app, the ...
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what were the impacts when a user affected with data breach when he signed up with third party authentication [duplicate]

Background : Recently quora got breached and database were reported to be stolen, Myself used to have a habit of signing in through google login. Problem statement : What were the possible ...
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2answers
211 views

Do all Authenticator Apps use the same algorithm?

I've tried some Authenticator Apps (Google,Microsoft,Authy,Lastpass,...) and all of those apps generate same one time passwords at the same time ? So, these apps are use the same algorithm which is a ...
3
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1answer
99 views

Having sudo mode in a web application, why use a password instead of one time passwords?

Online services, like GitHub, have Sudo mode. Sudo mode means, that a user performing delicate actions has only to authenticate every couple of minutes, but than again, although they are already ...
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3answers
157k views

Where to find Google Authenticator backup codes?

I'm slightly confused about obtaining Google Authenticator backup codes. I can find my Google Account backup codes at: https://myaccount.google.com/signinoptions/two-step-verification But have no ...
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4answers
131 views

What is a good method to authenticate users and make sure they don't give their credentials to someone else?

I'm new here I hope this is the right place to ask this question, I work at a call center and I've been asked to create a TimeClock system however we have the problem that agents share their ...
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0answers
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Does producing TOTP tokens weaken the stored secret? How much? [duplicate]

I am using Google Authenticator as a second factor on some sites, (including my Google Account). Every now and then I need to produce a token to log in. If some attacker received those tokens over ...
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6answers
382 views

When should I issue more than one multi-factor device to a user? Is it OK to give several active tokens vs none at all?

Most of the conventional IT.Sec thinking I've seen says that a user can only have one multi factor authentication device. I'd like to challenge that defacto-thinking and ask if there is ever an ...