Oops! Twitter Accidentally Used Your Phone Number for Ads

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Twitter admitted yesterday that it “unintentionally” used some email addresses and phone numbers for advertising purposes. These phone numbers were specifically used to keep your account safe with two-factor authentication.

We recently discovered that when you provided an email address or phone number for safety or security purposes (for example, two-factor authentication) this data may have inadvertently been used for advertising purposes, specifically in our Tailored Audiences and Partner Audiences advertising system.

This is exactly why SMS-based two-factor authentication needs to go away. SMS is inherently insecure, as the FBI recently noted. Funnily enough, I recently removed my phone number from Twitter, although it’s probably too late.

Using Two-Factor Authentication on Old Apple Devices

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Glenn Fleishman has a good tip on how to use Apple’s two-factor authentication on older devices that don’t support it.

But 2FA and outdated versions of Apple TV, iOS, and macOS don’t mix. You try to log in on those devices with your Apple ID and popups with codes may appear on other devices, but there’s no way to enter it on the piece of equipment from which you’re trying to log in. Fortunately, there’s a simple workaround.

I always forget about the manual method.

macOS: Creating an App-Specific Password for iCloud

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Learn how to generate an app-specific password

When you first enable two-factor authentication in iCloud, you might notice some of your apps appear broken. This is because those apps don’t support 2FA, and require app-specific passwords. Follow along with Jeff Butts as he demonstrates how to generate and manage your app-specific passwords.