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A large botnet targets M365 accounts with password spraying attacks

Security Affairs

A botnet of 130,000+ devices is attacking Microsoft 365 accounts via password-spraying, bypassing MFA by exploiting basic authentication. SecurityScorecard researchers discovered a botnet of over 130,000 devices that is conducting password-spray attacks against Microsoft 365 (M365) accounts worldwide.

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Gmail’s multi-factor authentication bypassed by hackers to pull off targeted attacks

Malwarebytes

Russian hackers have bypassed Google’s multi-factor authentication (MFA) in Gmail to pull off targeted attacks, according to security researchers at Google Threat Intelligence Group (GTIG). Normally, when you sign in to your Google account, you use your regular password plus a second verification step like a code sent to your phone.

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Failures in Twitter’s Two-Factor Authentication System

Schneier on Security

Twitter is having intermittent problems with its two-factor authentication system: Not all users are having problems receiving SMS authentication codes, and those who rely on an authenticator app or physical authentication token to secure their Twitter account may not have reason to test the mechanism.

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Microsoft Authenticator will soon ditch passwords for passkeys - here's what to do

Zero Day

PT ZDNET Those of you who use Microsoft Authenticator as a password manager will have to find another option, and soon. PT ZDNET Those of you who use Microsoft Authenticator as a password manager will have to find another option, and soon. You have several options.

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How to Lose a Fortune with Just One Bad Click

Krebs on Security

A scammer called using a real Google phone number to warn his Gmail account was being hacked, sent email security alerts directly from google.com, and ultimately seized control over the account by convincing him to click “yes” to a Google prompt on his mobile device.

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20 Million OpenAI accounts offered for sale

Malwarebytes

Post by emirking A translation of the Russian statement by the poster says: When I realized that OpenAI might have to verify accounts in bulk, I understood that my password wouldnt stay hidden. I have more than 20 million access codes to OpenAI accounts. Enable multi-factor authentication (MFA). What can users do?

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How the SolarWinds Hackers Bypassed Duo’s Multi-Factor Authentication

Schneier on Security

This is interesting : Toward the end of the second incident that Volexity worked involving Dark Halo, the actor was observed accessing the e-mail account of a user via OWA. Logs from the Exchange server showed that the attacker provided username and password authentication like normal but were not challenged for a second factor through Duo.