Authy Users' Phone Numbers Compromised via Twilio API Vulnerability
Authy Users' Phone Numbers Compromised via Twilio API Vulnerability
Twilio has confirmed that an unsecured API endpoint allowed threat actors to verify the phone numbers of millions of Authy multi-factor authentication users, potentially making them vulnerable to SMS phishing and SIM swapping attacks.
Goddammit, can companies stop leaking our shit everywhere please
Especially with such careless failures. If some employee was tricked through a well-planned social engineering attack, or they used some mega obscure day0 vulnerability, I'd not be happy, but shit happens, I guess. But not sending my phone number when someone just posts some GET command to an API should be a no-brainer....
What confuses me is even a half-competent audit and pentest would absolutely have found an api endpoint that's going to absolutely leak customer data, so the assumption I have to make is that, yet again, a "security" company can't be fucked to do the bare minimum to ensure their security shit is you know, secure.
Posting this against your comment for visibility, I would recommend anyone that was using authy switch to bitwarden's dedicated 2F authentication app. The company maintains several security compliance certificates and fairly regularly gets audited which they post publicly at https://bitwarden.com/help/is-bitwarden-audited/
Oh neat. I use their password manager but totally somehow missed them releasing a separate 2fa app.
We have taken action to secure this endpoint
FUCK ME DEAD
I got so much shit to reset up now, and I've closen aegis.
Bitwarden has a dedicated 2a app now. Highly recommend you go with that
I was considering an email host that did include bitwarden, any reason I should or shouldn't go for it.
That's especially bad, because the default behavior, iirc, is to have Multi-Device turned on, which means anyone can potentially add their device to your account and access your TOTP.
And I don't expect most users to know how or to remember to turn it off.
Let this be a reminder not to use Authy or Google Auth or Microsoft Auth if you can help it. Your best bet if you can help it is a Yubikey or Nitrokey. If you can't far better to go with Aegis or Ente Auth. If you need easy sync across devices, Aegis has that, but most of the security experts I know recommend going with 1Password as your MFA solution with sync. I personally don't trust 1Password as a for profit corporation, but I also accept I don't get paid to know about computer security to the degree that an actual security expert is
I'd recommend bitwarden's dedicated 2F authentication app. The company is regularly audited and they post the results at https://bitwarden.com/help/is-bitwarden-audited/
Thank fuck I got away from Authy years ago - cost me my Twitch account (because apparently Twitch straight won't allow you to switch away from Authy), but it was worth it to secure the rest of my things
good thing I stopped using Authy a while ago
Thanks Twilio!
Lol it's taken me a while to come around to MFA (I used to hate it but I've started using open source MFA apps), but my hesitation to use proprietary solutions has proved smart.
Oof, lucky I left them for aegis, android only app a long time ago. I hope/think I closed my authy account 🤞
common aegis W
Oh man this is going to suck.
We were looking for an authentication setup to allow for SSO and one of the front runners was Twilio. They have a meeting with us next week and I am not looking forward to this second hand embarrassment.
So for common folk like myself, what do I need to do? I used Authy for a few sites. Can a bad actor pretending to be me now get access to those sites?
I swapped to aegis from authy