An IT security researcher reveals how a wheelchair's QR code becomes a master key to all comfort functions.

Many services use two-factor authentication nowadays, where your phone or email address gets sent a code that you must enter as part of the login process into an online service. These codes are one ...

Come along with me on a journey as we delve into the swirling, echoing madness of identity attacks. Today, I present a case study on how different implementations of OAuth 2.0, the core authentication ...

Two-factor authentication adds an extra layer of defense against hackers—even if your password is stolen or guessed, another checkpoint will block account access. I regularly recommend enabling 2FA as ...

A major hardware upgrade for the Apple Watch lineup is planned for next year, findings in internal Apple code suggest. It is worth noting that no other Apple Watch models, including the upcoming 2025 ...

How to share your screen with others in Messages on your Mac You can share your screen or ask to see someone else’s screen on Mac using Messages. Simply open the messages app and click I next to the ...

In “Two-Factor Authentication, Two-Step Verification, and 1Password” (10 July 2023), I explained that for true two-factor authentication, you needed to acquire your time-based one-time password (TOTP) ...

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Do you receive login security codes for your online accounts via text message? These are the six- or seven-digit numbers sent via SMS that you need to enter along with your password when trying to ...

We've probably all received confirmation codes sent via text message when trying to sign into an account. Those codes are supposed to serve as two-factor authentication to confirm our identity and ...

One-time SMS codes are widely used as the second checkpoint in two-factor authentication (2FA) to sign into everything from banking apps to email accounts. As I've written before, though, SMS is one ...