fromArs Technica
1 week agoMillions of people imperiled through sign-in links sent by SMS
The links are sent to people seeking a range of services, including those offering insurance quotes, job listings, and referrals for pet sitters and tutors. To eliminate the hassle of collecting usernames and passwords-and for users to create and enter them-many such services instead require users to provide a cell phone number when signing up for an account. The services then send authentication links or passcodes by SMS when the users want to log in.
Privacy technologies