Twilio alerts Authy two-factor app users that ‘threat actors’ have their phone numbers

Twilio says someone has obtained phone numbers associated with its two-factor authentication service (2FA), Authy, as reported earlier by TechCrunch. In a security alert on Monday, Twilio warns that the “threat actors” may try to use the stolen phone numbers to carry out phishing attacks and other scams.

The incident follows a 2022 data breach that occurred after a phishing campaign tricked employees into disclosing their login credentials. The attackers accessed data from 163 Twilio accounts and managed to access and register additional devices on 93 Authy accounts.

Twilio traced this leak back to “an unauthenticated endpoint” that it has since secured. Last week, the threat actor ShinyHunters published a list of 33 million phone...

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