Researchers cited in the blog Krebs on Security found that criminals are using surrendered cell phone numbers to thwart two-factor authentication and break into users' accounts

Recycled phone numbers raise security risk

A twice-weekly report from ConnectSafely in partnership with CBS News Radio, produced by the nonprofit internet safety organization, ConnectSafely.org and hosted by former CBS News Technology Analyst Larry Magid. The report will cover a wide range of topics including security and scams, cyberbullying, election security meddling and social media.

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Recycled phone numbers raise security risk

Recycled phone numbers raise security risk